2027 Land Rover Defender: Vertex Trim, Prices and the 9,000-Lumen Roof Light

JLR confirmed on 8 July 2026 that the 2027 Land Rover Defender line adds a new Vertex specification, a new six-seat Defender 110 layout, a revised engine list and the first factory roof-mounted auxiliary light for the model, rated at a combined 9,000 lumens with up to 350 m of illumination when combined with the vehicle’s main headlights. The same official release prices Defender from £58,655 OTR in the UK and Defender Vertex from £92,635 OTR, and states that the roof light, the tail door gear carrier and several accessory packs become available in the UK from Autumn 2026. Nothing in that document describes United States pricing, United States launch timing or the roof light’s standalone output, so those three items remain unconfirmed.

Quick answer: what JLR actually announced on 8 July 2026

The announcement is a model-year update, not a new generation. JLR’s media release, titled “Tough luxury: new Defender Vertex leads design and accessory update” and dated 8 July 2026, groups the changes under six headline bullets: the new Defender Vertex character, an Extended Exterior Pack, a new Santorini Black theme for Defender Trophy Edition, Woolstone Green for Defender OCTA, new curated colours and finishes, a six-seat Defender 110 configuration, and an expanded accessory range that includes a roof-mounted light pod.

Two things in that list matter more than the rest for anyone planning to spend money on auxiliary lighting. First, the Expedition Roof Light is the first factory roof light offered for Defender, and JLR describes it as purpose-built for the vehicle and engineered to withstand extreme dust and water exposure. Second, it is integrated with the standard lighting system so that it can be operated through the main light stalk, which is a different ownership proposition from a switch-and-relay aftermarket bar.

What was announced	What the release says in plain terms	Status
Defender Vertex	New specification positioned alongside X specification	Confirmed
Extended Exterior Pack	Optional visual upgrade for X-Dynamic SE and X-Dynamic HSE, including Hard Top	Confirmed
Trophy Edition in Santorini Black	Replaces Keswick Green, sits beside Deep Sandglow Yellow	Confirmed
Defender OCTA in Woolstone Green	New paint option	Confirmed
Namib Orange	New colour for 90 and 110 across S, X-Dynamic SE, X-Dynamic HSE and X	Confirmed
Six-seat Defender 110	2+2+2 layout with two second-row Captain Chairs	Confirmed
Expedition Roof Light	9,000 lm combined with headlights, up to 350 m, main light stalk control	Confirmed as a product; specifications incomplete
United States pricing and timing	Not addressed in the release	Not announced
Standalone output of the roof light	The release quotes only a combined figure	Not published

The distinction between “confirmed as a product” and “fully specified” matters here, because the same paragraph that delivers the 9,000-lumen number also tells you what that number is measured against. That is not a detail to skim.

How to read a model-year update: three tiers of information

Model-year announcements mix three different kinds of statement, and treating them as one tier is how readers end up misinformed. The 8 July 2026 Defender release contains all three, so it is worth separating them explicitly before going further.

Tier one: facts JLR states as its own product decisions. Defender Vertex exists. It sits alongside X specification. The Extended Exterior Pack is optional on X-Dynamic SE and X-Dynamic HSE. Defender 110 gains a 2+2+2 layout. The Expedition Roof Light exists, is integrated with the standard lighting system, and becomes available in the UK from Autumn 2026. These are checkable propositions about what the company is doing.

Tier two: measured numbers JLR publishes. A combined 9,000 lumens, up to 350 m of illumination when combined with the main headlights, 60 litres of lockable storage and a 12 kg load capacity for the tail door gear carrier, 540 PS and 750 Nm for the updated OCTA V8, 550 Nm for the new P380 MHEV six-cylinder, 900 mm wading depth and 3,500 kg towing capacity on the current UK model page. These are figures, but each carries a condition, and the condition is part of the number.

Tier three: claims that require somebody else’s evidence. “Engineered to withstand extreme dust and water exposure” is a design intent, not a test result, unless a test report is published. “Aids dust filtration” for the raised air intake is a manufacturer’s description. The Dakar in-stock-class win shown on Land Rover’s UK Defender landing page is a manufacturer page statement; the release cited here does not carry it. None of these are false, but none of them are independent findings either.

The practical rule is simple: quote tier one and tier two with their conditions attached, and label tier three as what it is.

The Expedition Roof Light is the headline, and the 9,000 lumens figure has a condition

The sentence in the JLR release reads: the Expedition Roof Light “delivers a combined 9,000 lumens, providing up to 350m of illumination when combined with Defender’s main headlights.” Read that twice, because both numbers are conditional in the same way.

The 9,000 lumens is a combined figure. It is the light pod plus the vehicle’s main headlights, not the light pod alone. If you want to compare it against a 40-inch aftermarket bar advertised at 20,000 raw lumens, you cannot do that arithmetic honestly, because you do not know how the 9,000 splits between the pod and the headlights, and because raw lumens and usable lumens are different quantities measured under different conditions. The 350 m is likewise described as an illumination distance achieved when the pod and the headlights work together.

What the release does confirm about the lamp itself: it is purpose-built for Defender, it is integrated with the standard lighting system, it is operated through the main light stalk, and it is described as engineered to withstand extreme dust and water exposure. The United Kingdom availability note attached to it is Autumn 2026.

Expedition Roof Light property	What the source states	What it does not state
Output	9,000 lumens, combined with main headlights	Standalone or per-lamp lumens
Distance	Up to 350 m, with main headlights	Beam type at that distance, or the defined test condition
Control	Integrated with standard lighting system; main light stalk operation	Whether it can be enabled independently of high beam
Durability	Described as engineered for extreme dust and water exposure	Any IP rating or test standard
Market	Available from Autumn 2026 in the UK market	US, EU or other market timing and pricing
Approval	Not addressed	Any FMVSS or ECE approval marking

For an off-road owner, the control arrangement is the most consequential line in the whole announcement. A factory roof light wired into the vehicle’s standard lighting system and switched from the main light stalk means the vehicle’s own lighting architecture, its relay logic, its circuit protection and its body control interactions are already resolved by the manufacturer. An aftermarket roof bar requires you to build all of that yourself, and the engineering quality of that work is the single biggest variable in whether the installation is safe and durable.

Vertex: what the new specification contains, item by item

Defender Vertex is the change that gives the release its title, and JLR positions it explicitly as sitting alongside X specification. The company’s own quote in the release, from Defender Brand Director Mark Cameron, frames Vertex and the Extended Exterior Pack as introducing “a new character that expands the appeal of Defender.”

The exterior package is specific. Vertex adds extended front and rear bumpers, a larger front profiled grille and revised fog lamps, all finished in Shadow Atlas Matte. A Gloss Black tail door spoiler pairs with yellow front brake calipers and matching yellow exposed rear recovery eyes. Body-coloured lower body cladding visually lowers the profile. Standard wheels are 22-inch Diamond Turned units with a Satin Dark Grey tint and Carpathian Grey contrast; 22-inch Gloss Black and 20-inch Satin Dark Grey wheels are options.

Paint choices for Vertex are Fuji White, Santorini Black, Woolstone Green, Borasco Grey and Carpathian Grey, plus the Patagonia White Matte Wrap. Inside, buyers choose Windsor Leather and Forged textile seats in Ebony or Caraway over Ebony, or Ultrafabrics seats in Light Cloud over Lunar. JLR also notes that Ebony Forged textile is a new accent material for Defender, made from knitted 100 per cent polyester.

Comfort equipment on Vertex is stated clearly enough to compare across body styles: three-zone climate control, Cabin Air Purification Plus, an air quality sensor and a domestic plug socket are standard on the 90 and 110, upgraded to four-zone climate control on the 130.

Vertex made its public debut on the hillclimb and the Defender stand at the Goodwood Festival of Speed between 9 and 12 July 2026, one day after the release was published.

Vertex feature	Detail as published
Position in range	Alongside X specification
Bumpers, grille, fog lamps	Extended front and rear bumpers, larger profiled grille, revised fog lamps
Exterior finish	Shadow Atlas Matte
Spoiler	Gloss Black tail door spoiler
Brakes and recovery points	Yellow front brake calipers, yellow exposed rear recovery eyes
Lower body	Body-coloured cladding
Standard wheels	22-inch Diamond Turned, Satin Dark Grey tint, Carpathian Grey contrast
Optional wheels	22-inch Gloss Black; 20-inch Satin Dark Grey
Paint	Fuji White, Santorini Black, Woolstone Green, Borasco Grey, Carpathian Grey, Patagonia White Matte Wrap
Interior	Windsor Leather and Forged textile (Ebony, Caraway/Ebony), or Ultrafabrics (Light Cloud/Lunar)
Climate	Three-zone on 90 and 110; four-zone on 130
Public debut	Goodwood Festival of Speed, 9-12 July 2026
UK price from	£92,635 OTR

The full UK price list, and how to read it

JLR publishes a complete on-the-road price table in the release, and it is the most useful single artefact in the document because it maps every body style and trim to the powertrains actually offered with it. Prices below are exactly as published, in pounds sterling, on-the-road for the United Kingdom.

Model	Available powertrains	Price from (OTR)
90 S	D250, D350	£58,655
90 X-Dynamic SE	D250, D350, P380	£63,260
90 X-Dynamic HSE	D250, D350, P380	£70,165
90 X	D350, P380	£92,635
90 Vertex	D350, P380	£92,635
90 Hard Top S	D250	£60,770
90 Hard Top X-Dynamic SE	D250	£64,650
90 Hard Top X-Dynamic HSE	D250, D350	£69,555
110 S	D250, D350, PHEV	£64,315
110 X-Dynamic SE	D250, D350, PHEV, P380	£69,820
110 X-Dynamic HSE	D250, D350, PHEV	£74,270
110 Trophy Edition	D350, PHEV, P380	£84,345
110 X	D350, PHEV, P380	£97,125
110 Vertex	D350, PHEV, P380	£97,125
110 Hard Top S	D250	£65,610
110 Hard Top X-Dynamic SE	D250	£69,935
110 Hard Top X-Dynamic HSE	D250, D350	£74,590
110 Hard Top X	D350	£95,680
110 OCTA	P540	£147,245
110 OCTA Black	P540	£157,245
130 X-Dynamic SE	D350, P380	£84,250
130 X-Dynamic HSE	D350, P380	£88,140
130 X	D350, P380	£104,440
130 Vertex	D350, P380	£104,440
130 Outbound	D350	£85,810

Three things fall out of that table immediately.

First, Vertex and X carry identical starting prices within each body style: £92,635 for both the 90 X and the 90 Vertex, £97,125 for both the 110 X and the 110 Vertex, and £104,440 for both the 130 X and the 130 Vertex. That is consistent with JLR’s own wording that Vertex sits alongside X specification rather than above it.

Second, the base Defender in this list is the 90 S with a D250 diesel at £58,655, which is the figure quoted in the release body. Anyone repeating a single “starts at” number for Defender should attach the body style, the trim and the powertrain, because the spread inside this table runs from £58,655 to £157,245.

Third, the powertrain availability column is not uniform. The P380 six-cylinder petrol is offered on 90 X-Dynamic SE, 90 X-Dynamic HSE, 90 X, 90 Vertex, 110 X-Dynamic SE, 110 Trophy Edition, 110 X, 110 Vertex, 130 X-Dynamic SE, 130 X-Dynamic HSE, 130 X and 130 Vertex, but not on any 110 X-Dynamic HSE or any Hard Top variant. The plug-in hybrid is offered across the 110 range in this table but not on the 90 or 130. If you are cross-shopping body styles, the engine list changes with the body, not just with the trim.

The new P380 MHEV six-cylinder, and what JLR did not publish

The powertrain change described in the release is a new petrol 3.0-litre six-cylinder P380 MHEV producing 550 Nm of torque, with “a suite of new technologies to improve real-world fuel economy.” That is the entire description.

What that means in practice is that the torque figure is the only performance number JLR attached to the P380 in this document. There is no power output in PS or kW, no zero-to-60 time, no fuel consumption figure, no CO2 figure and no explanation of which technologies are new. The price table confirms the P380 is a petrol unit offered alongside D250 and D350 diesels, a plug-in hybrid and, on OCTA, a P540 V8, but the table itself does not decode those codes.

The code decoding is straightforward from context and is worth stating for readers who are trying to configure a vehicle: D250 and D350 are the two diesel outputs in the range, P380 is the new 3.0-litre six-cylinder petrol mild hybrid, PHEV is the petrol plug-in hybrid, and P540 is the 4.4-litre twin-turbo V8 used in Defender OCTA. JLR’s release does not spell this out in one place, so treat the mapping as derived from the table’s own columns rather than as a quoted JLR definition.

One more boundary worth stating plainly: the release says the P380 is “introduced,” and it does not say what, if anything, the P380 replaces. Any claim that a specific earlier engine has been discontinued is not supported by this document.

Defender OCTA for MY27: 540 PS, 750 Nm, and a new exhaust manifold

The OCTA changes are the most numerically explicit part of the release. From MY27, the 4.4-litre twin-turbo V8 in Defender OCTA delivers 540 PS with torque maintained at 750 Nm and a 0-60 mph time of 4.2 seconds. The release also states that the updated engine has a more characterful and deeper exhaust noise, giving what JLR calls a truer V8 sound, and attributes that change to modifications to the exhaust manifold.

The rest of the OCTA description is unchanged positioning: a twin-turbo mild-hybrid V8, 6D Dynamics suspension, OCTA Mode, a wider stance, a choice of dedicated all-season or off-road tyres, and optional chopped carbon fibre interior and exterior elements. OCTA is now also available in Woolstone Green, alongside Sargasso Blue, Borasco Grey, Patagonia White Matte Wrap, Charente Grey, Petra Copper and Narvik Black.

Both OCTA and OCTA Black carry a Gloss Black tail door spoiler as standard, and the Chopped Carbon Fibre Exterior Pack becomes an option on OCTA Black for the first time.

Pricing for the OCTA in the same UK table is £147,245 for the 110 OCTA and £157,245 for the 110 OCTA Black, both with the P540 engine.

OCTA MY27 item	Published figure or statement
Engine	4.4-litre twin-turbo V8, mild hybrid
Power	540 PS from MY27
Torque	750 Nm, maintained
0-60 mph	4.2 seconds
Chassis	6D Dynamics suspension, OCTA Mode
Stance and tyres	Wider stance; all-season or off-road tyres
New paint	Woolstone Green
Spoiler	Gloss Black tail door spoiler, standard
First-time option	Chopped Carbon Fibre Exterior Pack on OCTA Black
UK price from	£147,245 (OCTA), £157,245 (OCTA Black)

Trophy Edition and the Extended Exterior Pack explained

Defender Trophy Edition was reborn in 2025 and is based on the 110. It exists to celebrate the brand’s history of adventure challenges, and its included accessories are expedition-oriented: an Expedition Roof Rack, a Deployable Roof Ladder and a Raised Air Intake. For the 2027 model year, Trophy Edition is offered in a new Santorini Black theme, which replaces Keswick Green and gives buyers a subtle alternative to the existing Deep Sandglow Yellow.

Beyond the paint, the 110 Trophy Edition carries steel-style 20-inch Gloss Black wheels, black brake calipers and Satin Black powder-coated steering wheel spokes. Trophy side graphics and bonnet decals are accented in Sandglow Yellow, and the illuminated metal treadplates and dashboard etching carry Trophy Edition branding. JLR lists three interior colour customisations for the model.

The Trophy Edition Accessory Pack adds an Expedition Roof Rack for stowage, a black Deployable Roof Ladder for access to roof-mounted kit, a Gloss Black Side-Mounted Gear Carrier for wet, muddy or sandy items, and a Raised Air Intake that the release says aids dust filtration. That last phrase is a manufacturer’s description of the intended benefit, not a filtration efficiency figure.

The Extended Exterior Pack is a different proposition and is aimed at a wider set of trims. It is available as an optional visual upgrade on X-Dynamic SE and X-Dynamic HSE, including Hard Top. It adds extended front and rear bumpers finished in Shadow Atlas Matte, a rear spoiler and a body-coloured spare wheel cover, and it can be specified with one of four wheel options: a new 22-inch Gloss Black wheel, a 20-inch Satin Dark Grey option, 20-inch Diamond Turned wheels with a Gloss Dark Grey contrast, or a 20-inch Gloss Black variant.

In other words, Vertex is a specification with its own price line, while the Extended Exterior Pack is an add-on that brings part of the Vertex look to X-Dynamic trims. They are not the same product, and the release does not present them as such.

Six seats in a Defender 110: the 2+2+2 layout and what changes

The practical change for families in this announcement is not a light or a colour, it is a seat count. Defender 110 gains a six-seat configuration in a 2+2+2 layout, with two Captain Chairs in the second row. Each Captain Chair adds extra contouring, bolster cushions, individual armrests, a manual recline function and twin floor cupholders behind the centre console. JLR describes the configuration as a game-changer for families and weekend adventurers and says it is available across a range of colour and trim combinations, including the new Forged textile.

Two honest caveats belong with that. First, the release assigns the six-seat layout to Defender 110 only; it does not say whether the 90 or the 130 will follow. Second, a 2+2+2 layout in a 110 body changes the relationship between people and cargo, and the release publishes no cargo volumes for the six-seat configuration. JLR’s UK model page does publish a seven-seat variant figure of up to 2,233 litres and a P300e figure of up to 2,127 litres under a different measurement convention, but those are not six-seat figures and should not be substituted for them.

For readers whose Defender doubles as a basecamp, the seat choice interacts directly with where roof kit goes. A six-seat layout fills the cabin; the recovery gear, the compressor and the lighting accessories then have to live on the roof, the tail door or a rack, which is exactly the space the new accessory range targets.

Colours, films and finishes: 15 exterior options and a new gloss protective film

The colour story in this release is larger than a single new paint. Namib Orange is new, inspired by the orange sand dunes of the coastal Namib desert in Southern Africa, which JLR identifies as the location of the new Defender’s 2020 launch. It is available on the 90 and 110 body designs for the S, X-Dynamic SE, X-Dynamic HSE and X trims, and it can be specified together with the new Extended Exterior Pack on Defender X-Dynamics.

The Patagonia White Matte Wrap, previously an OCTA option, is now also offered on X and Vertex. And with the refreshed palette, Defender is offered with up to 15 exterior colour options.

The finish that will interest owners who actually use their vehicles off pavement is the new Gloss Protective Film. JLR describes it as self-healing, providing protection from scratches, stone chips and scuffs, and using the sun’s ultraviolet rays to repair micro-scratches over time. Previously the film was only available in a matte finish; the gloss version is new for this model year, and all paints on Vertex can be specified with either the matte or the gloss protective film.

A protective film is not a substitute for physical protection on the areas that take rock strikes, and JLR does not claim that it is. But for a vehicle whose factory roof light sits above the windscreen and whose bumpers are now extended, the film decision is part of the same buying conversation as the accessories.

The accessory range beyond the roof light: packs, carriers and connected features

JLR structured the accessory announcement into named packs, which makes it easier to describe precisely.

The Explorer Pack is the expedition configuration: expedition roof rack, side gear carrier, raised air intake and deployable ladder. The Adventure Pack is aimed at self-sufficiency and includes an integrated air compressor, a portable rinse system and an exterior-mounted side gear carrier. The Urban Pack is the city configuration and adds distinctive bonnet decals, black fixed side steps and a dark rear scuff plate.

The Technology Pack consolidates features JLR says are most popular with Defender clients worldwide and is now available on S, X-Dynamic SE and X-Dynamic HSE. It includes a domestic plug socket, a head-up display, a Meridian Surround Sound System and a Clear-Sight Interior Rearview Mirror.

Separately, the release describes a new in-car connected speech service with AI-driven conversational intelligence, activated by the wake phrase “Hey Land Rover.” JLR says it stays on standby, allows natural speech and follow-up questions without repetition, and uses generative AI for answers.

Accessory or pack	Contents as published	Availability note
Expedition Roof Light	Roof-mounted factory auxiliary light, 9,000 lm combined with headlights, up to 350 m, main light stalk control	UK from Autumn 2026
Tail Door Gear Carrier	Gloss Black, Defender script, up to 60 litres lockable, 12 kg load capacity, key supplied	UK from Autumn 2026
Tail Door Spoiler	Standard on Vertex and part of Extended Exterior Pack; Gloss Black, Fuji White, Santorini Black or primed	UK from Autumn 2026
Explorer Pack	Expedition roof rack, side gear carrier, raised air intake, deployable ladder	UK from Autumn 2026
Adventure Pack	Integrated air compressor, portable rinse system, exterior side gear carrier	UK from Autumn 2026
Urban Pack	Bonnet decals, black fixed side steps, dark rear scuff plate	UK from Autumn 2026
Technology Pack	Domestic plug socket, head-up display, Meridian Surround Sound, Clear-Sight mirror	Now on S, X-Dynamic SE, X-Dynamic HSE

The Autumn 2026 date comes from a single footnote that JLR applies to the Expedition Roof Light, the Tail Door Gear Carrier, the Tail Door Spoiler, the Explorer Pack, the Adventure Pack, the Urban Pack and the Technology Pack, and it is scoped to the UK market. It is not a global availability date.

Why the tail door gear carrier is more relevant to lighting than it looks

It is easy to read “60 litres of lockable storage, 12 kg” as a camping convenience and move on. For anyone installing auxiliary lighting, it is a statement about where the vehicle’s electrical and mechanical load is going.

The carrier mounts on the tail door, which is a moving panel with hinges designed around a spare wheel and a defined mass. JLR publishes a 12 kg load capacity for the carrier and a 60-litre lockable volume with a supplied key. What JLR does not publish in this release is the tail door’s total permissible mass, the effect of combining the carrier with a spare wheel and other tail-door accessories, or any guidance on how the carrier interacts with a rear-facing work light.

In practice, the reason this matters is that off-road builds accumulate mass on moving panels faster than owners expect: a spare, a carrier, a jerry can bracket, a rear work light, sometimes a fold-down table. Each addition is small; the sum is what the hinges and the latch experience. If you are planning to add a rear-facing light or a bracket to a tail door that already carries a loaded gear carrier, the honest answer is that you need the vehicle-specific load figures from the manufacturer or the accessory supplier, not a rule of thumb from an article.

The lighting-specific version of the same point: a rear work light on a tail door is the one auxiliary lamp whose aim changes every time the door opens. That is a mounting-quality question as much as an electrical one, and it is covered in more depth in our guide to auxiliary light aiming and glare.

What the factory roof light changes for aftermarket buyers

The most useful thing a factory auxiliary light does is establish a reference point. It tells you what a manufacturer with an engineering budget considers an acceptable roof-mounted solution for its own vehicle, and it gives you a control arrangement to compare against.

Three reference points come out of this announcement.

Control integration. The Expedition Roof Light operates through the main light stalk because it is integrated with the standard lighting system. An aftermarket bar on the same vehicle will normally be switched separately, through a dash switch, an auxiliary switch panel or a relay triggered by a signal from the vehicle’s own lighting circuit. Those are all legitimate solutions, but they are different from a factory-integrated system, and the difference is visible every time you use the vehicle rather than only at install time.

A combined output figure rather than a standalone one. JLR quotes 9,000 lumens combined with the main headlights. Aftermarket lighting is usually quoted per lamp or per bar, often as raw lumens. Comparing the two numbers directly is not valid, because a raw lumen figure tells you nothing about how much of that light lands where you need it. If you want an honest comparison framework, start with the physics of colour temperature and what it changes in dust, fog and rain, which our guide to LED light bar colour temperature sets out in detail.

A deliberate silence on beam and mounting geometry. The release says nothing about beam pattern, aiming angle, mounting height or the interaction between the roof light and the vehicle’s high beam. Those are exactly the variables that determine whether a roof light is useful or a glare source, and they are the subject of our mounting position guide.

If you are specifying an aftermarket roof light for a Defender, the practical questions to answer before buying are these.

• Does the lamp have a documented beam pattern with a stated angle, or only a lumen figure?
• What is the lamp’s current draw at the vehicle’s actual operating voltage, and what is the circuit’s fuse rating?
• Where does the harness run, and how is it protected where it crosses the roof line?
• Is the roof load within the vehicle’s dynamic and static roof load limits, including the rack’s own mass?
• Can the lamp be switched off independently of the high beam, so you are not forced into a choice between glare and darkness?
• Is the aim repeatable, and can it be restored after a rack is removed and refitted?

That last question is why the aiming process matters more than the purchase. A roof-mounted lamp that cannot be returned to a known aim after maintenance is a lamp you will eventually drive with badly aimed.

The current Defender baseline: wading depth, roof load, towing and winching

To judge what the 27MY update adds, you need the numbers on the vehicle as it stands. Land Rover’s official UK Defender 110 page publishes several that matter for accessory planning, and they are worth putting together in one place because they define the envelope that a roof light, a rack and a recovery setup have to live inside.

Published figure	Value	Condition attached by the source
Maximum wading depth	900 mm	Stated as maximum; the 3D Surround Camera displays water depth
Dynamic roof load	168 kg	With off-road tyres; maximum load includes the weight of the roof rack
Static roof load	300 kg	With off-road tyres; supports the optional rooftop tent
Maximum towing capacity	3,500 kg	Plug-in hybrid maximum is 3,000 kg
Winch capacity	4,536 kg	Stated as winching ability

The roof load figures are where a lighting plan meets a hard limit. A 168 kg dynamic limit has to accommodate the rack, the light pod, the awning, the traction boards and whatever else lives up there, and the source explicitly says the maximum includes the rack’s own weight. It is also explicitly tied to off-road tyres, which is the kind of condition that gets lost when a number is repeated. The 300 kg static figure applies when the vehicle is parked and supports the rooftop tent use case.

Both figures come from the current UK model page, not from the July 2026 release, and the release does not restate them for the 27MY accessories. Treat them as the published baseline for the model rather than as a matched specification for the new light.

How the 27MY Defender sits against other 2027 off-road SUVs

The 2027 Land Rover Defender update lands in a crowded 2027 field, and the comparisons that matter are not about prestige.

Against the 2027 Toyota Land Cruiser. Toyota’s 2027 update is a trim and equipment story around a hybrid four-wheel-drive layout with two US trims; our 2027 Land Cruiser breakdown covers the i-FORCE MAX configuration, the locking differentials and the high-mounted air intake option, with the caveat that an intake is not a waterproofing guarantee. The Defender’s equivalent differentiator in this update is the factory lighting integration, not a drivetrain claim.

Against the 2027 Mitsubishi Pajero. Mitsubishi’s relaunch is a return of a nameplate with a confirmed engine, transmission and four-wheel-drive system, and a still-open list of market questions, as set out in our 2027 Pajero launch coverage. Where Pajero’s story is about capability returning to a segment, Defender’s 27MY story is about specification breadth within an existing model.

Against the 2027 Jeep Wrangler Smoky Mountain. Jeep’s edition is a themed special with a published configuration set, covered in our Smoky Mountain edition notes. A themed edition and a factory roof light are different kinds of product decision, but both answer the same buyer question: how much of the build does the manufacturer do for you?

Against the 2027 Ford Bronco RTR. Ford’s RTR package is desert-oriented equipment, described in our Bronco RTR price and specs. It is the closest analogue in the field to a manufacturer-supported off-road specification with an accessories dimension.

Against what is coming. The market context is that body-on-frame SUVs are being revived, not retired. Nissan confirmed on 16 April 2026 that the Xterra SUV is returning, to be built in the United States, with a launch targeted for late 2028, as part of a family of five US-built body-on-frame models that Nissan says will use V6 or new V6 hybrid powertrains and could extend to pickups and multi-row SUVs under Nissan and INFINITI. That announcement is a confirmation of intent with no published prices, dimensions or specifications, and it should be read that way.

Vehicle	What the confirmed news is	Status of pricing
2027 Land Rover Defender	Vertex specification, six-seat 110, revised engines, factory roof light	UK OTR prices published; US not announced
2027 Toyota Land Cruiser	Equipment and trim update on a hybrid 4WD layout	Covered in our separate report
2027 Mitsubishi Pajero	Nameplate relaunch with confirmed drivetrain	Market-by-market questions remain
2027 Jeep Wrangler Smoky Mountain	Themed edition with a defined configuration set	Edition pricing reported separately
2027 Ford Bronco RTR	Desert-focused equipment package	Reported separately
Nissan Xterra (late 2028 target)	Confirmed return, US-built, body-on-frame family	No pricing or specifications published

Lighting the Defender for night trail work: what the factory option implies

A factory roof light tells you something about how the manufacturer expects the vehicle to be used at night, and it also constrains what a serious lighting build looks like.

The Expedition Roof Light delivers overhead illumination in the wilderness, in JLR’s own words. Overhead light solves a specific problem: it fills the near and mid field immediately in front of the vehicle, where a low-mounted beam leaves a dark band, and it lets you see terrain contours and obstacles that a bumper-height beam throws into shadow. It creates a different problem, which is that a high-mounted source is more likely to reach another driver’s eyes and more likely to reflect back off dust, fog, rain and snow.

The practical layered approach that works with a vehicle like this has three parts. A low, well-aimed beam handles the road or trail surface ahead and stays within the envelope the vehicle was approved with. A mid-height or roof-mounted auxiliary source handles the field beyond the low beam’s reach, used only when there is no oncoming traffic and no leading vehicle. Working and camp lighting is a separate function again, used when the vehicle is stationary, and its job is illumination without glare for people standing around it.

Colour temperature interacts with all of this. Amber and lower colour temperatures are often chosen for dust, fog, rain and snow because the driver perceives less backscatter glare, and our colour temperature guide works through what 5000K, 6000K and amber actually change in those conditions. What none of that changes is the physics of a high-mounted lamp in airborne dust: if the beam is in front of you and the dust is between you and the target, you will see the dust.

The selection side of the same decision is a format question as much as an output question. A slim straight bar, a curved bar and a compact pod distribute light differently and mount differently, and the option set on our LED light bars collection shows the range in practice, while the LED light pods collection is where the smaller, more flexible mounting options sit. Two specific formats are worth naming for a roof-mount conversation: the Jungle Series 40 inch slim straight bar for a low-profile roof line, and the Pinnacle Series 40 inch curved spot beam bar for a wider wrapped field.

The regulatory boundary: what FMVSS 108 does and does not say about auxiliary lamps

This is the part of the subject where confident-sounding misinformation is most common, so it is worth setting out the actual documents.

Start with NHTSA’s own position. In interpretation letter 13434.ztv, the agency’s Acting Chief Counsel wrote that “DOT has not established specifications for auxiliary lamps such as driving, fog, etc., and does not directly regulate them.” The letter goes further: FMVSS No. 108 does not require auxiliary driving lamps to be original equipment. What the standard does constrain is installation. Auxiliary lamps must not be installed, as original or aftermarket equipment, in a manner that impairs the effectiveness of required lighting equipment, and they should not be used as substitutes for headlamps.

The current regulatory text says the same thing in the standard’s own language. Section S6.2.1 of 49 CFR 571.108 states that no additional lamp, reflective device or other motor vehicle equipment is permitted to be installed that impairs the effectiveness of lighting equipment required by the standard. Section S6.2.2 addresses obstruction: if a required lamp or reflective device is obstructed by vehicle equipment such as mirrors, snow plows, wrecker booms, backhoes or winches and cannot meet applicable photometry and visibility requirements, the vehicle must be equipped with an additional lamp or device of the same type that meets all applicable requirements. Section S6.2.3.1 prohibits styling ornaments or other features in front of a headlamp lens when the headlamp is activated in the steady burning state. Section S6.7.1.2 requires that a replacement lamp or device designed for particular vehicle models must be designed so that installing it does not take the vehicle out of compliance.

The letter also disposes of a persistent myth. SAE is not a regulatory body, and compliance with its standards and recommended practices is voluntary and of no legal significance unless those standards have been incorporated by reference into FMVSS No. 108 or into a state’s motor vehicle laws. For auxiliary driving, fog and similar lamps, NHTSA stated that SAE provisions had not been incorporated as federal requirements, and that the agency had no plans at that time to regulate auxiliary driving or auxiliary lower beam headlamps.

That has a direct consequence for how you read a product label. An SAE reference on an auxiliary lamp box is a statement about the manufacturer’s design intent against a voluntary standard. It is not a federal approval, and it is not a licence to use the lamp on a public road.

The picture changes if the vehicle is a commercial motor vehicle. FMCSA’s 49 CFR 393.24 governs headlamps, auxiliary driving lamps and front fog lamps on buses, trucks and truck tractors. It permits auxiliary driving lamps and front fog lamps for use in conjunction with, but not in lieu of, the required headlamps; it requires auxiliary driving lamps to meet SAE J581 and front fog lamps to meet SAE J583; it requires the lamps to be mounted so the beams are aimable and so the aim cannot be disturbed while operating on public roads; and it requires them to be aimed to the specifications in FMVSS No. 108, SAE J581 and SAE J583 respectively. This is a commercial-vehicle rule. It does not convert SAE J581 into a passenger-car requirement.

Question	Answer from the sources
Does DOT approve auxiliary driving lights?	No. DOT has not established specifications for auxiliary lamps and does not directly regulate them
Does FMVSS 108 require auxiliary driving lamps?	No. They are not required as original equipment
Can they be installed?	Yes, but not in a way that impairs the effectiveness of required lighting equipment, and not as substitutes for headlamps
Does an SAE marking mean federal approval?	No. SAE standards are voluntary unless incorporated by reference into FMVSS 108 or state law
Do state rules apply?	Yes. The federal framework does not authorise road use, and state requirements vary by state
What about commercial vehicles?	49 CFR 393.24 requires auxiliary driving lamps to meet SAE J581 and front fog lamps SAE J583, and to be aimable with aim that cannot be disturbed on public roads

Reading SAE J581: what the auxiliary upper beam standard covers

Because 49 CFR 393.24 names SAE J581, it is worth knowing what that document is.

SAE J581 is titled “Auxiliary Upper Beam Lamps.” It is maintained by SAE’s Road Illumination Devices Standards Committee, and its scope is described on SAE Mobilus as providing test procedures, performance requirements and guidelines for auxiliary upper beam lamps. The version referenced in the FMCSA rule is J581_200407, the July 2004 revision; the standard was first issued in March 1979. The SAE record shows later revisions including J581_201102, dated 24 February 2011.

Two practical implications follow. First, when a regulation pins a requirement to a dated standard revision, the revision matters; a manufacturer working to a newer revision is not automatically working to the one the rule names. Second, a standard page in a catalogue is not the standard text. The public SAE record confirms the title, scope, committee, issue date and revision history; it does not give you the photometric tables, and those are what a test report would cite.

For a Defender owner, the honest summary is this. The federal framework tells you that auxiliary lamps must not break the required lighting on your vehicle, and it tells you that a commercial vehicle’s auxiliary driving lamps are held to SAE J581. It does not tell you that any particular roof light is approved for road use, and nothing in JLR’s July 2026 release makes an approval claim for the Expedition Roof Light.

Roof load, mounting and aim: the engineering questions a factory light does not answer for you

Whether you buy the factory light or an aftermarket bar, five engineering questions decide whether the installation is sound.

Structural load. The roof of a Defender has a published dynamic load limit of 168 kg with off-road tyres, and the source states that the limit includes the rack’s own weight. A roof light pod, its mounting bracket and its harness are part of that budget. Adding a light to a rack that is already near its limit is a structural decision, not an accessory decision.

Mounting rigidity and vibration. The FMCSA rule for commercial vehicles requires auxiliary driving lamps to be mounted so that aim cannot be disturbed while operating on public roads, which is a useful statement of the underlying principle even though it does not govern a passenger Defender. A roof-mounted lamp experiences more vibration than a bumper-mounted one because the roof is further from the vehicle’s stiffest structure and often carries a rack with its own modes. A bracket that flexes will change the aim over time, and a lamp that vibrates will eventually fatigue its fasteners.

Aim repeatability. Any owner who removes a roof rack for garage clearance, for a service visit or for seasonal storage needs to be able to return the lamp to a known aim. That argues for a mounting system with a positive reference, a documented angle, or at minimum a marked position that can be photographed before removal.

Harness routing and protection. A roof light harness crosses the roof line, which means it passes a seal, a gutter or a grommet, and it lives in the highest-vibration, highest-UV part of the vehicle. The questions to ask are where the harness enters the body, what protects it from chafing, how the entry is sealed, and whether the routing is serviceable without removing the headliner.

Aim and glare. A roof-mounted auxiliary lamp aimed for maximum reach will put light into the mirrors of vehicles ahead and into the eyes of oncoming drivers on any undulating road. The responsible approach is to aim for the usable field rather than the maximum throw, and to be able to disable the lamp independently. Our guide to aiming and glare works through a controlled wall check and a closed-area confirmation, and the reasoning applies to factory and aftermarket lamps alike.

Engineering question	Why it matters	What to obtain before buying
Roof load budget	168 kg dynamic limit includes the rack’s own weight	The rack’s mass, the lamp’s mass, the bracket’s mass
Mounting rigidity	Aim drift and fastener fatigue	Bracket design, material, and any vehicle-specific fitting instructions
Aim repeatability	Rack removal and refit	A documented reference angle or a marked datum
Harness routing	Chafe, water ingress and serviceability	The grommet or entry point, and its sealing method
Independent control	Glare management	Confirmation the lamp can be switched off separately
Current draw and circuit protection	Electrical safety	Draw at operating voltage and the fuse rating

Electrical planning: what to plan around a factory-integrated lighting system

The single most important sentence about the Expedition Roof Light is that it is integrated with the standard lighting system so it can be operated through the main light stalk. That tells you the manufacturer has taken responsibility for the switching logic, the relay or solid-state switching, the circuit protection and the interaction with the vehicle’s other lighting functions.

An aftermarket installation has to reproduce that responsibility. The planning sequence is the same whether the vehicle is a Defender or anything else.

Establish the actual supply voltage under load. A nominal 12 V system does not deliver 12 V at the lamp terminals when the engine is running and the lights are on. Measure at the lamp with the circuit energised, because voltage drop through the harness is what determines whether the lamp receives its rated voltage or something lower, and lower voltage means lower output for the same nominal wattage.

Size the conductor for the current and the distance. Current is determined by the lamp’s actual draw, not by a marketing wattage figure. Distance is the round trip from the supply to the lamp and back through the return path, and on a roof light that distance is longer than most installers assume. A conductor that is adequate for a bumper light can be marginal for a roof light on the same vehicle.

Protect the circuit at the source. Fusing belongs as close to the power source as practical, sized for the conductor’s capacity and the lamp’s draw. A fuse that is sized only for the lamp and not for the conductor does not protect the conductor.

Return the current properly. A poor return path looks like a voltage problem and behaves like a dimming or flickering fault. Bonding to a convenient body panel is not the same as a return path sized for the load.

Keep the control signal and the power circuit separate. A trigger signal drawn from the vehicle’s lighting circuit should drive a relay or a controller, not the lamp’s main current. On modern vehicles, the trigger signal may be a pulse-width-modulated output, which is a separate problem with its own diagnosis path.

Our article on why an LED light bar dims at idle covers supply and return-path diagnosis in the order worth checking, and the guide to LED light bar flickering works through the symptom patterns that point to wiring, PWM or a component fault.

What you should not do is assume that a factory-integrated system can be extended by tapping into it. Unless the manufacturer publishes an accessory circuit or a rated auxiliary output, adding load to a factory lighting circuit is a modification with warranty and safety consequences, and it is the kind of question that belongs with a dealer or a qualified auto electrician rather than with an online forum.

Six-seat Defender 110 versus a 90 or 130: which body style to compare

The release assigns the new six-seat layout to the 110, and the price table shows the three body styles have different powertrain menus. Combining those two facts gives a practical decision framework.

The 90 is the shortest body and the one with the narrowest engine list in this table: D250 and D350 on the S, Hard Top S and Hard Top X-Dynamic SE, adding P380 from X-Dynamic SE upward, and D350 and P380 only on the X and Vertex. It is the body style where the P380 first appears as you climb the range. It has no PHEV option in the published table.

The 110 is the widest menu: D250, D350, PHEV and P380 appear in various combinations, and it is the only body style offering Trophy Edition and OCTA. It is also the body style that gains the six-seat configuration.

The 130 carries the longest body and the highest-volume passenger brief, and its table is D350 and P380 across X-Dynamic SE, X-Dynamic HSE, X and Vertex, with a D350-only Outbound variant. It has no PHEV entry in the published table. Vertex on the 130 upgrades climate control from three zones to four.

For a buyer whose priority is roof-mounted equipment, the 130 has the most interior volume behind the third row, which reduces how much has to go on the roof. For a buyer whose priority is the newest equipment combination, the 110 is where the six-seat layout and the widest powertrain menu sit. Neither of those is a capability claim, and JLR publishes no payload figures in this release.

Body style	Powertrains in the published UK table	Notable features in this release
90	D250, D350, P380 depending on trim; D250 only on Hard Top S and Hard Top X-Dynamic SE	P380 available from X-Dynamic SE upward
110	D250, D350, PHEV, P380 depending on trim	Six-seat 2+2+2 layout; Trophy Edition; OCTA and OCTA Black
130	D350, P380 depending on trim; D350 only on Outbound	Vertex upgrades to four-zone climate control

What has not been confirmed about the 2027 Land Rover Defender

A well-run purchase decision depends on knowing which questions are answered. For the 2027 Land Rover Defender in the United States, most of them are not.

United States pricing and timing. The July 2026 release gives UK on-the-road prices and UK availability for the accessories. It does not announce a US launch date, a US price, a US trim walk or which of the new colours and packs will cross the Atlantic.

The roof light’s standalone specification. There is no standalone lumen figure, no wattage, no beam description, no colour temperature and no ingress protection rating published for the Expedition Roof Light in this source.

Approval status. Nothing in the release claims FMVSS or ECE approval for the roof light, and nothing states whether it is intended for on-road use, off-road use only, or both.

Control behaviour. “Operated through the main light stalk” does not tell you whether the lamp activates with high beam only, whether it can be activated independently, or whether any automatic dimming is implemented.

The rest of the engine story. The P380’s power output, fuel consumption and emissions figures are not in this document, and neither is its relationship to any engine it may supersede.

The 27MY changeover timing. The release is dated 8 July 2026 and describes a UK on-the-road price list and Autumn 2026 accessory availability, but it does not publish a model-year changeover date or state which markets receive the 27MY specification and when.

The name of the update itself. JLR does not describe this as a facelift, a mid-cycle refresh or a new generation. It describes refreshed design details. Calling it anything stronger is an interpretation, not a fact.

Vehicle-level safety ratings for the 27MY. No independent rating for the updated model appears in the sources reviewed here. Readers who want to check current published ratings can start at the IIHS ratings hub and at NHTSA’s recall search for their own vehicle identification number, because a rating or a recall applies to a specific model year and configuration rather than to a nameplate.

A practical checklist before you order or install anything

This list is deliberately ordered by what you should settle first.

• Confirm which body style, trim and powertrain you are actually buying, because the powertrain menu changes with the body style in the published UK table.
• Get the roof light’s standalone figures in writing if you intend to compare it with an aftermarket option. A combined figure cannot be compared with a per-lamp rating.
• Confirm the roof load budget for your exact configuration, including the rack’s mass, against the 168 kg dynamic limit and its stated condition.
• Confirm the roof light’s control behaviour, specifically whether it can be switched independently of the main beam.
• Ask what approval markings the lamp carries and what they are markings of. A DOT or SAE reference is not a federal approval for an auxiliary lamp.
• If you are adding an aftermarket lamp instead, specify the beam pattern by angle rather than by a name, and specify the current draw at operating voltage.
• Size the conductor for the round-trip distance and fuse at the source, not at the lamp.
• Plan the harness route through the roof entry before you buy the lamp, and decide how the entry will be sealed.
• Decide how you will restore aim after any rack removal, and record the current aim before you change anything.
• Verify your state’s or country’s road-use rules for auxiliary lamps on your own vehicle, because the federal framework does not authorise road use and rules vary.

Frequently asked questions

Is the new Defender Vertex a separate trim level or a package?

JLR describes Defender Vertex as sitting alongside X specification and publishes it as its own line in the on-the-road price table for the 90, 110 and 130, at the same starting price as the equivalent X. The release does not describe it as an option pack, so the most accurate answer is that it is a named specification with its own price line that JLR positions alongside X rather than above it.

How bright is the Defender Expedition Roof Light?

The only published figure is a combined 9,000 lumens, described as achieved together with Defender’s main headlights, giving up to 350 m of illumination. JLR does not publish a standalone lumen rating for the roof light, so the 9,000-lumen figure should not be quoted as the light pod’s own output.

Can I use the Expedition Roof Light on the road?

JLR’s release makes no road-use claim for the lamp and publishes no approval marking for it. Under the federal framework described in NHTSA’s interpretation letter 13434.ztv, DOT does not directly regulate auxiliary lamps, but they must not be installed in a way that impairs required lighting equipment and must not substitute for headlamps, and state rules apply on top of that. The road-use question has to be answered for your jurisdiction and your vehicle.

Does an SAE marking on an auxiliary light mean it is approved?

No. NHTSA’s interpretation letter states that SAE is not a regulatory body and that compliance with its standards is voluntary and of no legal significance unless those standards are incorporated by reference into FMVSS No. 108 or into state law. For auxiliary driving and fog lamps, NHTSA stated that SAE provisions had not been incorporated as federal requirements. SAE J581 is named in FMCSA’s commercial-vehicle rule 49 CFR 393.24, which applies to buses, trucks and truck tractors.

How much does the 2027 Land Rover Defender cost?

In the United Kingdom, JLR’s published on-the-road prices start at £58,655 for the 90 S with a D250 diesel, and Defender Vertex starts at £92,635 OTR. The range in the published table runs to £157,245 for the 110 OCTA Black. United States pricing for the 2027 Land Rover Defender has not been announced in the source reviewed here.

What is new in the six-seat Defender 110?

Defender 110 gains a 2+2+2 configuration with two second-row Captain Chairs. Each chair adds extra contouring, bolster cushions, individual armrests, a manual recline function and twin floor cupholders behind the centre console. The release describes the layout as available across a range of colour and trim combinations, including the new Forged textile, and it assigns the configuration to the 110 only.

Did JLR change the Defender’s engines for 2027?

Yes, two changes are described. A new petrol 3.0-litre six-cylinder P380 MHEV producing 550 Nm is introduced, and the 4.4-litre twin-turbo V8 in Defender OCTA is updated so that from MY27 it delivers 540 PS with torque maintained at 750 Nm and a 0-60 mph time of 4.2 seconds. JLR has not published the P380’s power output, fuel consumption or emissions figures in this release.

Is the Defender OCTA still the most powerful Defender?

JLR describes Defender OCTA as the toughest and most capable Defender and as the master of extreme performance, with a twin-turbo mild-hybrid V8, 6D Dynamics suspension and OCTA Mode. The published MY27 figure is 540 PS with 750 Nm, and the UK price table lists OCTA and OCTA Black at £147,245 and £157,245, which are the highest figures in that table.

What is the Defender’s roof load limit and does a roof light count against it?

Land Rover’s UK Defender 110 page publishes a dynamic roof load of 168 kg with off-road tyres and a static roof load of 300 kg, and it states that the maximum load includes the weight of the roof rack. A roof light, its bracket and its harness therefore count against that budget. The July 2026 release does not restate roof load figures for the 27MY accessories.

When do the new Defender accessories become available?

JLR states that the Expedition Roof Light, the Tail Door Gear Carrier, the Tail Door Spoiler, the Explorer Pack, the Adventure Pack, the Urban Pack and the Technology Pack become available from Autumn 2026 in the UK market. No other market timing is published in that release.

What is the tail door gear carrier’s capacity?

It provides up to 60 litres of lockable storage using a supplied key and has a 12 kg load capacity. It is finished in Gloss Black with Defender script and mounts on the tail door. JLR does not publish the combined tail door mass limit or any interaction with other tail-door accessories in this release.

Is a new generation of the 2027 Land Rover Defender coming?

Nothing in the July 2026 release announces a new generation. It describes refreshed design details, new specifications, new colours, a new seating configuration, revised powertrains and new accessories for the model year. Any claim about a next-generation Defender is outside what this source states.

Editorial note

This article separates three kinds of statement deliberately: what JLR states as its own product decision, what figures JLR publishes with the conditions attached to them, and what remains unannounced. Where a number is conditional, the condition is stated next to it. Where the source is silent, this article says so and does not fill the gap.

The two most common errors in coverage of announcements like this one are quoting a combined lumen figure as if it were a single lamp’s output and treating an SAE reference as a regulatory approval. Both are addressed directly above using the manufacturer’s own wording and NHTSA’s own interpretation letter. Readers who want the underlying documents rather than a summary will find them in the Sources list below.

Author: SAEC Lighting Engineering Team, Foshan Last updated: 2026-10-15

Sources

• JLR Media, “TOUGH LUXURY: NEW DEFENDER VERTEX LEADS DESIGN AND ACCESSORY UPDATE”, 8 July 2026 — https://media.jlr.com/en-gb/news/2026/07/tough-luxury-new-defender-vertex-leads-design-and-accessory-update
• Land Rover UK, Defender 110 model page (wading depth, roof load, towing and winch figures) — https://www.landrover.co.uk/defender/defender-110/index.html
• Land Rover UK, Defender landing page (brand background, Dakar D7X-R notice) — https://www.landrover.co.uk/defender/index.html
• Land Rover USA, Defender accessories catalogue — https://www.landroverusa.com/defender/accessories/defender-90.html
• eCFR, 49 CFR 571.108, Lamps, reflective devices, and associated equipment (S6.2.1, S6.2.2, S6.2.3.1, S6.7.1.2) — https://www.ecfr.gov/current/title-49/subtitle-B/chapter-V/part-571/subpart-B/section-571.108
• NHTSA, interpretation letter 13434.ztv, Office of the Chief Counsel — https://www.nhtsa.gov/interpretations/13434ztv
• U.S. Government Publishing Office, 49 CFR 393.24, Requirements for head lamps, auxiliary driving lamps and front fog lamps — https://www.govinfo.gov/content/pkg/CFR-2013-title49-vol5/xml/CFR-2013-title49-vol5-sec393-24.xml
• SAE Mobilus, J581 Auxiliary Upper Beam Lamps, standard record — https://saemobilus.sae.org/standards/j581_200407-auxiliary-upper-beam-lamps
• Nissan, “Nissan Vision: Retorno do Xterra está confirmado para os Estados Unidos”, 16 April 2026 — https://brazil.nissannews.com/pt-BR/releases/nissan-vision-retorno-do-xterra-esta-confirmado-para-os-estados-unidos
• IIHS ratings hub (for readers verifying published ratings for their own model year and configuration) — https://www.iihs.org/ratings