Land Rover Defender Vertex debuts as OCTA loses 93 bhp to meet Euro 6e-bis emissions rules

Land Rover has unveiled the Defender Vertex on 8 July, a new urban-focused trim designed to broaden the iconic off-roader’s appeal, while simultaneously detuning the flagship OCTA’s BMW-sourced V8 by 93 bhp to meet stricter European emissions regulations. The update marks the Defender’s most significant midlife revision since its 2020 relaunch, introducing substantial powertrain changes including the retirement of the supercharged 5.0-litre V8 and arrival of a new mild-hybrid inline-six.

Vertex: A More Refined Urban Face

The new Defender Vertex trim slots alongside the existing X specification, targeting buyers seeking a more refined, city-friendly aesthetic than the traditional utilitarian Defender profile. According to Autocar, the Vertex features a larger front grille, body-coloured exterior cladding in place of the standard black plastic, a prominent rear roof spoiler, and 22-inch wheels as standard equipment.

Pricing positions the Vertex firmly in premium luxury territory, starting at £92,635 for the 90 short-wheelbase, £97,125 for the 110 mid-size, and £104,440 for the 130 long-wheelbase variant. For buyers wanting elements of the Vertex aesthetic without committing to the full trim, PistonHeads reports Land Rover now offers an Extended Exterior Pack for X-Dynamic SE and X-Dynamic HSE models, delivering the new bumpers and rear spoiler as a standalone option.

OCTA Power Cut: Euro Regulations Bite Hard

The most significant technical news centres on the Defender OCTA, Land Rover’s performance-oriented flagship. The BMW-sourced 4.4-litre twin-turbocharged V8 has been detuned from 626 bhp to 533 bhp to comply with incoming Euro 6e-bis emissions standards, according to Autocar. The power reduction increases the 0-60 mph sprint time from 3.8 seconds to 4.2 seconds, though peak torque remains unchanged at 553 lb-ft.

Land Rover emphasises the engine now delivers “a deeper, more authentic V8 exhaust note” as compensation for the performance sacrifice, though buyers seeking the original 626 bhp output will need to act quickly on remaining pre-update inventory. The OCTA also gains new exterior colour options including Namib Orange and Woolstone Green, plus expanded availability of the Patagonia White Matte Wrap and a new self-healing Gloss Protective Film option, Land Rover’s official newsroom confirms.

Powertrain Overhaul: V8 Exit, Six-Cylinder Entry

Beyond the OCTA detune, Land Rover has retired the venerable supercharged 5.0-litre AJ V8 petrol engine entirely from the Defender lineup for the 2027 model year, PistonHeads reports. The naturally aspirated V8, which previously powered 90 and 130 variants, ends production as emissions regulations tighten across global markets.

Filling part of that gap, Land Rover introduces a new P380 mild-hybrid powertrain featuring a twin-turbocharged 3.0-litre inline-six producing 375 bhp and 405 lb-ft of torque. The P380 becomes available across all Defender body styles, offering a middle ground between the base four-cylinder and six-cylinder diesel options and the now-detuned OCTA V8.

Interior Updates: Six-Seat 110 Configuration

The Defender 110 gains a new six-seat interior configuration option, replacing the traditional three-seat second row with individual captain’s chairs. CarScoops notes the layout improves third-row access significantly while creating additional luggage space between the second-row seats, addressing a common complaint about the 110’s interior packaging.

What This Means for Buyers

The Defender’s evolution reveals Land Rover’s strategic tension between heritage and regulation. The Vertex trim positions the Defender squarely against urban luxury rivals like the Mercedes-Benz G-Class’s AMG Line and BMW X7 M Sport packages, targeting buyers who prioritise street presence over mud-plugging capability. At £92,635, the Vertex 90 undercuts a base G-Class by approximately £30,000, though it sacrifices the Mercedes’ true body-on-frame construction and portal axles.

The OCTA power reduction presents a more challenging value proposition. Buyers paying premium prices for the range-topping performance model now receive 15% less power than early OCTA customers, with only marginal exhaust tuning and new paint options as compensation. For markets outside the European Union not bound by Euro 6e-bis regulations, particularly the United States and Middle East, the detune may prompt customer backlash if Land Rover applies it globally rather than maintaining regional specifications.

The retirement of the 5.0-litre supercharged V8 closes a significant chapter in Land Rover history. That engine, developed under Ford ownership and used across Jaguar Land Rover products for nearly two decades, represented the last naturally aspirated V8 in the company’s lineup. Its departure leaves only turbocharged engines across the entire Defender range, marking an irreversible shift toward forced induction for emissions compliance.

For prospective buyers, the calculus is clear: the Defender continues its steady march from rugged tool to premium lifestyle vehicle. Those seeking the rawest, most powerful versions should secure pre-update OCTA inventory immediately, while urban-focused buyers gain a more polished, city-appropriate option in the Vertex that doesn’t sacrifice the Defender’s fundamental capability. The six-seat 110 configuration addresses a genuine usability gap, potentially stealing sales from the larger 130 for families prioritising comfort over maximum cargo space.