What engine is in the Land Rover Defender OCTA?

The Defender OCTA uses a BMW-sourced 4.4-litre twin-turbo mild-hybrid V8 engine. It produces 635 HP and up to 800 Nm of torque, capable of a 0-60 mph sprint in just 3.8 seconds.

How much does a used Land Rover Defender OCTA cost in the UK?

As of May 2026, a used Defender OCTA typically costs between £110,000 and £135,000. Limited-run 'Edition One' models command the highest premiums due to exclusive Faroe Green paint and carbon fibre detailing.

What is the 6D Dynamics suspension in the Defender OCTA?

The 6D Dynamics system is a hydraulic-interlinked suspension that eliminates the need for traditional anti-roll bars. It reduces body roll on-road and increases wheel articulation off-road, allowing the OCTA to handle both high-speed cornering and extreme terrain.

Is the Land Rover Defender OCTA ULEZ compliant?

Yes, the Defender OCTA features a 4.4L V8 mild-hybrid (MHEV) powertrain. This qualifies it as a Euro 6 compliant vehicle, meaning it is currently ULEZ exempt and avoids the daily London emissions charges.

How does the Defender OCTA differ from the standard Defender V8?

The Defender OCTA is the high-performance flagship focused on speed and advanced hydraulics. While the standard Defender V8 uses a 5.0L supercharged engine with 525 HP, the OCTA uses a 4.4L twin-turbo V8 with 635 HP and a wider, more aggressive stance.

What should UK buyers check when purchasing a used Defender OCTA?

When buying a used OCTA, ensure the V5C logbook correctly identifies the model and check the DVLA database for tax status. Due to its high value, many buyers opt for specialized PCP or HP finance packages rather than cash purchases.

Used Land Rover Defender OCTA: 2026 UK Buyer’s Guide to the 635HP Beast

Since its launch in late 2024, the Land Rover Defender OCTA has rewritten the rulebook for what a luxury SUV can achieve. Combining the rugged silhouette of the Defender 110 with a BMW-sourced twin-turbo V8 and hydraulic-interlinked suspension, it was built to dominate both the Nürburgring and the dunes of Dubai.

Now, in May 2026, the first wave of these "super-Defenders" is entering the secondary market. For the discerning UK buyer, a used Land Rover Defender OCTA represents a significant saving over the initial £145,000+ list price, while still offering performance that puts many dedicated sports cars to shame.

What Makes the OCTA Different?

The OCTA isn't just a Defender with a bigger engine; it is a bespoke performance flagship. Named after the octahedral shape of a diamond—the hardest natural mineral—it was designed to be the toughest and most powerful Defender ever produced.

Performance Specifications

Feature	Specification
Engine	4.4-litre Twin-Turbo V8 (Mild Hybrid)
Power	635 HP
Torque	750 Nm (up to 800 Nm with Dynamic Launch)
0-60 mph	3.8 Seconds
Top Speed	155 mph
Suspension	6D Dynamics (Hydraulic Interlinked)

The 2026 Market Landscape: Pricing and Availability

In 2026, the OCTA remains a rare sight. While Land Rover didn’t strictly limit production to a numbered run, the high price point and the one-year-only "Edition One" launch models mean supply is tighter than standard V8 Defenders.

Currently, on the used market:

2024/2025 "Edition One" Models: These tend to hold their value exceptionally well due to the exclusive Faroe Green paintwork and chopped carbon fibre detailing. Expect to pay between £125,000 and £135,000.
Standard OCTA (2025 builds): Depending on mileage, these are surfacing between £110,000 and £120,000.

When searching for the best deals, CarsLink.ai provides an invaluable tool for tracking market fluctuations and comparing dealer stock across the UK, ensuring you don't overpay for "premium" dealer markups.

Key Considerations for UK Buyers in 2026

1. The 6D Dynamics Suspension

This is the OCTA’s party piece. The hydraulic system eliminates the need for traditional anti-roll bars, allowing the car to stay flat in corners on-road while providing massive wheel articulation off-road.

Buyer’s Tip: During a test drive, cycle through the drive modes. Listen for any knocking or fluid pump noise, which could indicate a leak in the complex hydraulic circuits.

2. ULEZ and Running Costs

Despite its 635hp output, the OCTA’s BMW-sourced engine features a 48V mild-hybrid system. This makes it fully ULEZ compliant, avoiding the daily charges in London and other UK Clean Air Zones (CAZ).

Road Tax (VED): Be prepared for the "Expensive Car Supplement." Since the vehicle is under six years old and cost over £40,000, you will be paying the higher rate of VED until the vehicle's seventh year.
Fuel Economy: Real-world driving averages around 18-22 mpg. If you have a heavy right foot, expect single digits.

3. Off-Road Wear and Tear

The OCTA was marketed as the ultimate off-roader. While most owners likely stayed on the tarmac, some may have taken the "OCTA Mode" (the car’s dedicated off-road performance setting) literally.

Inspection: Check the underbody shielding and the 20-inch/22-inch forged alloy wheels for rock rash. Ensure the bespoke 33-inch Goodyear Advance All-Terrain tyres have even wear; replacing a full set of these specialized tyres can cost upwards of £1,500.

Financing Your 635HP Beast: PCP vs. HP

In 2026, interest rates have stabilised, making Luxury SUV PCP (Personal Contract Purchase) a popular route for the OCTA.

PCP: Ideal if you want to swap the car in 3 years. Because the OCTA has strong residual value (guaranteed future value), monthly payments may surprisingly be lower than on more common luxury SUVs that depreciate faster.
HP (Hire Purchase): Better if you intend to keep the OCTA as a long-term collector’s piece. Given that this is likely one of the last great purely internal combustion V8s from JLR, it has significant future classic potential.

Why Buy a Used OCTA via CarsLink.ai?

Navigating the high-end SUV market requires precision. At CarsLink.ai, we simplify the process by aggregating data from across the UK’s most reputable specialist dealers. Our platform allows you to filter by specific OCTA features, such as the "Burnt Sienna" semi-aniline leather interior or the specific off-road "Chop Carbon" exterior packs.

Verdict: Is the OCTA Worth It?

The Land Rover Defender OCTA is a mechanical masterpiece. It bridges the gap between the rugged utility of a standard Defender and the supercar-slaying performance of a Range Rover Sport SV.

In 2026, buying a used model is the smartest way to experience this pinnacle of British engineering. You avoid the steepest part of the depreciation curve while still owning a vehicle that remains under manufacturer warranty (typically 3 years/60,000 miles).

Ready to find your 635HP beast? Browse the latest listings and expert valuations on CarsLink.ai today and secure a Defender that truly stands apart from the pack.

Disclaimer: Ensure all V5C documentation is present and perform a full HPI check before purchasing any high-value vehicle. Verify MOT status (though 2024/25 models won't require one until their third anniversary).