McLaren 675LT Spider: 500-Unit Open-Top Supercar

The McLaren 675LT Spider stands as a pinnacle of engineering excellence, blending ferocious power with the freedom of open-top motoring. This limited-edition convertible, produced in just 500 units, elevates the 650S platform to near-hypercar territory while maintaining everyday usability.

Engineering a Lightweight Legend

At its core, the 675LT Spider retains the 3.8-litre twin-turbocharged V8 from the coupe, now tuned to unleash 666bhp and 700Nm of torque. Faster-spinning turbos, revised camshafts, and ECU remapping contribute to this devilish output, paired with a seven-speed dual-clutch transmission capable of shifts in under 40 milliseconds. Despite adding 40kg for the folding hardtop mechanism, it remains 100kg lighter than the 650S Spider, thanks to extensive carbon fibre use and aerodynamic tweaks.

McLaren incorporated around 33% new components compared to its predecessor, including a Proactive Chassis Control system with hydraulic interlinked dampers that eliminate traditional anti-roll bars. This setup delivers exceptional body control without compromising ride quality, even on imperfect roads. The Spider’s top speed hits 203mph, with a 0-62mph sprint in 2.9 seconds—matching the coupe precisely.

Powertrain and Performance Breakdown

The M838T engine revs to 8,500rpm, providing relentless acceleration. Independent tests confirm 0-60mph in 3.0 seconds and a quarter-mile in 10.5 seconds at 139.7mph, aided by a low 1,399kg kerb weight and slippery aerodynamics. Braking prowess is equally impressive: carbon-ceramic discs halt the car from 60mph in just 94 feet, enhanced by a deployable rear airbrake.

This table highlights the Spider’s edge in power-to-weight ratio, making it a track weapon disguised as a grand tourer.

Dynamic Driving Experience

Behind the wheel, the 675LT Spider shines with its drive modes: Normal, Sport, and Track. In Normal, it cruises docily, shifting gears early for efficiency around 24mpg combined. Switch to Sport or Track, and the exhaust cracks open, turbos spool aggressively, and steering weights up via a quicker rack—faster even than the P1 hypercar.

On twisty roads, the wide track, stiffer suspension, and hydraulic steering deliver pinpoint precision. The figure-of-eight test clocks 22.4 seconds at 0.98g average, outpacing Porsche 911 GT3 and Lamborghini Huracán. Yet, it’s surprisingly compliant daily: quiet cabin, good visibility, and smooth low-speed manners make traffic tolerable.

• Handling Highlights: Proactive suspension absorbs bumps while maintaining flat cornering.
• Braking: Massive carbon-ceramics inspire total confidence.
• Top-Down Thrill: Roof folds in 17 seconds up to 30mph, amplifying the V8’s symphony.

Design and Aerodynamics

Visually, the Long Tail (LT) badge nods to McLaren’s F1 GTR racer. A longer rear deck, deeper front splitter, and active rear wing generate superior downforce—up 30% over the 650S. Carbon fibre accents, including the bonnet and rear deck, reduce weight while channelling air efficiently. The dihedral doors swing upward for dramatic access, and 19-inch front/20-inch rear lightweight alloys wrapped in Pirelli P Zero tyres complete the aggressive stance.

Interior Refinement Meets Raw Focus

The carbon fibre MonoCell II tub provides a fighter-jet-like cockpit. Alcantara and carbon trim dominate, with supportive seats offering decent adjustment. Visibility surprises for a mid-engined supercar, and the folding roof stacks neatly without encroaching on the modest luggage space.

Infotainment is functional: a central 7-inch screen handles navigation and audio, with IRIS software that’s quick but lacks Apple CarPlay. Climate control and switchgear feel premium, though the track-focused ethos means no frills like parking sensors in base spec.

Rivals and Market Position

Ferrari 488 Spider and Lamborghini Huracán Performante Spyder vie for attention, but the 675LT edges in raw pace and lightness. Its £285,450 price (2016) included a £25,000 premium over the coupe, yet all units sold out instantly—underscoring exclusivity. Today, used examples command premiums, blending investment appeal with driving purity.

Ownership Considerations

Running costs reflect its prowess: 275g/km CO2 incurs high taxes, and 24.2mpg is optimistic in spirited use. Maintenance via McLaren dealers is pricey, but reliability from the proven V8 lineage reassures. Limited production enhances resale value.

FAQ

What makes the 675LT Spider special?
It combines P1-derived tech, sub-3-second acceleration, and open-top drama in a 500-unit run.

Is it practical for daily driving?
Yes—refined ride, quiet cabin, and easy controls handle commutes well.

How does it compare to the coupe?
Nearly identical performance, with added roof-down joy and minimal weight penalty.

Top speed and acceleration?
203mph top, 0-62mph in 2.9s.

Why is it sold out?
Hypercar performance at ‘merely’ supercar money drove instant demand.