The McLaren 765LT Spider is a high-performance, limited-production roadster introduced in July 2021 as the convertible variant of the 765LT coupe. Part of McLaren’s “Longtail” lineage, the 765LT Spider represents the most focused and driver-centric iteration of the McLaren 720S platform. It’s characterized by significant weight reduction, increased power, and enhanced aerodynamics, all aimed at delivering an exhilarating track-focused experience with the added thrill of open-top driving. The “LT” designation signifies “Longtail,” referencing McLaren’s historical racing cars with extended bodies for improved aerodynamic performance. This model sits at the pinnacle of the McLaren Super Series, offering a more extreme experience than the standard 720S Spider.
Technical Specifications
| Brand | McLaren |
| Model | 765LT |
| Generation | 765LT Spider |
| Type (Engine) | 4.0 V8 (765 Hp) SSG |
| Start of production | July, 2021 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Roadster |
| Seats | 2 |
| Doors | 2 |
| Fuel consumption at Low speed (WLTP) | 22.1 l/100 km (10.6 US mpg, 12.8 UK mpg, 4.5 km/l) |
| Fuel consumption at Medium speed (WLTP) | 11.5 l/100 km (20.5 US mpg, 24.6 UK mpg, 8.7 km/l) |
| Fuel consumption at high speed (WLTP) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg, 9.8 km/l) |
| Fuel consumption at very high speed (WLTP) | 10.9 l/100 km (21.6 US mpg, 25.9 UK mpg, 9.2 km/l) |
| Combined fuel consumption (WLTP) | 12.3 l/100 km (19.1 US mpg, 23 UK mpg, 8.1 km/l) |
| CO2 emissions (WLTP) | 280 g/km |
| Fuel consumption (economy) – urban | 16.8 l/100 km (14 US mpg, 16.8 UK mpg, 6 km/l) |
| Fuel consumption (economy) – extra urban | 13.1 l/100 km (18 US mpg, 21.6 UK mpg, 7.6 km/l) |
| Fuel consumption (economy) – combined | 14.7 l/100 km (16 US mpg, 19.2 UK mpg, 6.8 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 2.8 sec |
| Acceleration 0 – 62 mph | 2.8 sec |
| Acceleration 0 – 60 mph | 2.7 sec |
| Acceleration 0 – 200 km/h | 7.2 sec |
| Maximum speed | 330 km/h (205.05 mph) |
| Weight-to-power ratio | 1.8 kg/Hp, 551.2 Hp/tonne |
| Weight-to-torque ratio | 1.7 kg/Nm, 576.4 Nm/tonne |
| Power | 765 Hp @ 7500 rpm |
| Power per litre | 191.5 Hp/l |
| Torque | 800 Nm @ 5500 rpm (590.05 lb.-ft. @ 5500 rpm) |
| Maximum engine speed | 8500 rpm |
| Engine layout | Middle, Longitudinal |
| Engine Model/Code | M840T |
| Engine displacement | 3994 cm3 (243.73 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-Turbo, Intercooler |
| Valvetrain | DOHC, VVT |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 24.5 l (25.89 US qt | 21.56 UK qt) |
| Kerb Weight | 1388 kg (3060.02 lbs.) |
| Trunk (boot) space – minimum | 150 l (5.3 cu. ft.) |
| Fuel tank capacity | 72 l (19.02 US gal | 15.84 UK gal) |
| Length | 4600 mm (181.1 in.) |
| Width with mirrors folded | 2065 mm (81.3 in.) |
| Width including mirrors | 2161 mm (85.08 in.) |
| Height | 1192 mm (46.93 in.) |
| Wheelbase | 2670 mm (105.12 in.) |
| Front track | 1659 mm (65.31 in.) |
| Rear (Back) track | 1617 mm (63.66 in.) |
| Front overhang | 1105 mm (43.5 in.) |
| Rear overhang | 824 mm (32.44 in.) |
| Approach angle | 6.93-8.88° |
| Departure angle | 12.3° |
| Ramp-over (brakeover) angle | 11.25° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission SSG |
| Front suspension | Double wishbone |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs, 390 mm |
| Rear brakes | Ventilated discs, 380 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | Front wheel tires: 24535 R19Rear wheel tires: 305/30 R20 |
| Wheel rims size | Front wheel rims: 8J x 19Rear wheel rims: 11J x 20 |
Powertrain & Engine Architecture
At the heart of the 765LT Spider lies McLaren’s 4.0-liter twin-turbocharged V8 engine, designated M840T. This engine is a derivative of the unit found in the 720S, but extensively upgraded for the LT model. Key enhancements include forged aluminum pistons, lightweight connecting rods, and a revised crankshaft. The engine utilizes direct fuel injection and variable valve timing (VVT) on both intake and exhaust valves. The twin-turbochargers are low-inertia units, designed to minimize turbo lag and deliver instant throttle response. The engine produces 765 horsepower at 7,500 rpm and 590 lb-ft of torque at 5,500 rpm. The transmission is a 7-speed dual-clutch transmission (SSG – Seamless Shift Gearbox) optimized for rapid gear changes. McLaren recalibrated the transmission for the 765LT, with shorter gear ratios to enhance acceleration.
Driving Characteristics
The 765LT Spider delivers an incredibly focused and engaging driving experience. The combination of the increased power, reduced weight (approximately 80 kg lighter than the 720S Spider), and revised aerodynamics results in blistering acceleration. The car feels significantly more responsive and agile than the standard 720S Spider. The shorter gear ratios of the SSG transmission keep the engine within its peak power band, providing relentless acceleration. While the suspension is firm, it’s well-damped and provides a surprisingly compliant ride for a car of this performance caliber. The electro-hydraulic steering is precise and communicative, offering excellent feedback to the driver. The open-top configuration adds another dimension to the driving experience, amplifying the sound of the V8 engine.
Equipment & Trim Levels
The 765LT Spider is positioned as a premium, track-focused model, and as such, comes standard with a comprehensive list of performance-enhancing features. Standard equipment includes carbon fiber body panels, lightweight seats, a titanium exhaust system, and a track-focused suspension setup. The interior features Alcantara upholstery, with extensive carbon fiber trim. Optional extras include a full carbon fiber roof, a bespoke luggage set, and a range of personalization options through McLaren Special Operations (MSO). The focus is on minimizing weight and maximizing performance, so luxury features are deliberately minimized.
Chassis & Braking
The chassis of the 765LT Spider is based on the McLaren Monocage II carbon fiber monocoque, providing exceptional rigidity and lightweight construction. The suspension utilizes double wishbones at both the front and rear, with adaptive dampers and anti-roll bars. The braking system features ventilated discs at all four corners, with 390mm discs at the front and 380mm discs at the rear. The brakes are equipped with McLaren’s Ceramic Composite Brakes (CCB) as standard, offering superior stopping power and fade resistance. The car also features an advanced electronic stability control system (ESC) with multiple modes, allowing the driver to adjust the level of intervention.
Market Reception & Comparison
The McLaren 765LT Spider received overwhelmingly positive reviews from automotive critics. It was praised for its exceptional performance, engaging driving dynamics, and focused character. Compared to the standard 720S Spider, the 765LT Spider offers a significantly more visceral and rewarding driving experience. While the 720S Spider is more comfortable and versatile, the 765LT Spider is the clear choice for drivers prioritizing performance and track capability. Fuel economy, while not a primary concern for buyers of this type of vehicle, is reasonable for its performance level, but still relatively high at around 19.1 US mpg combined. Reliability has been generally good, although the complex powertrain and advanced technology require specialized maintenance.
Legacy
The McLaren 765LT Spider represents a high point in McLaren’s Super Series lineage. Its combination of extreme performance, lightweight construction, and focused driving dynamics has cemented its reputation as one of the most exhilarating and capable supercars of its era. On the used car market, the 765LT Spider commands a premium price due to its limited production run and desirability. The M840T engine, while complex, has proven to be relatively robust when properly maintained. The 765LT Spider is likely to become a highly sought-after collector’s item in the future, representing a significant achievement in automotive engineering and design.
