McLaren 675LT Track Test: 500-Unit Longtail Review

The McLaren 675LT stands as a pinnacle of engineering excellence, transforming the already impressive 650S into a track-focused predator. This limited-edition supercar, priced around £260,000, delivers 675 PS (666 bhp) from its refined 3.8-litre twin-turbo V8, paired with a 30 per cent longer titanium exhaust for intensified sound and performance. Every component has been scrutinized for weight reduction, ensuring no mass penalty despite its extended ‘Longtail’ bodywork.

Powertrain Evolution: More Thrust, Less Weight

At the heart of the 675LT lies a powertrain that’s been overhauled with 50 per cent revised engine components. Torque surges impressively, enabling blistering acceleration: 0-60mph in 2.9 seconds and 0-124mph shortly after. The seven-speed dual-clutch transmission shifts with lightning speed, propelling the car to quarter-mile times of 10.5 seconds at 139.7mph.

Weight savings are meticulous—carbon fibre extensively deployed, lighter suspension arms, and Proactive Chassis Control (PCC) system that adapts seamlessly from road compliance to track rigidity. This results in a power-to-weight ratio that outpaces even legendary predecessors like the McLaren F1 in straight-line speed.

Chassis and Suspension: Precision Redefined

The suspension upgrades are transformative: front damper rates up 27 per cent, rear by 67 per cent, with a 20mm wider track front and rear for superior stability. The front end sits 20mm lower to optimize airflow, enhancing rear diffuser efficiency and shifting the center of pressure forward for balanced downforce—40 per cent more than the 650S.

Steering receives a quicker rack and revised geometry, delivering heavier feel and telepathic response. On bumpy British roads, the PCC system shines, maintaining flat composure while filtering imperfections better than expected for such a hardcore machine. Track testing reveals neutral balance, sharp turn-in, and phenomenal traction, even with Pirelli P Zero Trofeo tires demanding warm-up.

Aerodynamic Mastery: Downforce and Speed

The ‘Longtail’ moniker nods to extended rear bodywork, increasing length without weight gain. Active aerodynamics generate massive downforce, crucial for high-speed stability at venues like Silverstone. Improved engine cooling supports sustained lapping, while the rear diffuser thrives on faster underbody airflow.

This setup yields figure-eight times of 22.4 seconds at 0.98g—rivaling the Dodge Viper ACR and surpassing Porsche 911 GT3 and Lamborghini Huracán. At Willow Springs, it clocked 1:24.29, second only to the Porsche 918 Spyder.

On-Track Performance: Silverstone Domination

Lapping Silverstone with McLaren’s Chief Test Driver reveals the 675LT’s essence. From pit lane, the firmer ride and immediate steering signal intent. Acceleration pins occupants back, braking hauls the car down with authority, and cornering forces intensify physicality.

The car feels alive—flatter through high-speed sweeps like Copse and Maggotts, with mid-engine poise enabling precise lines. Traction control, when engaged, manages overwhelming power without intrusion, though purists note its value on exit. Neutral handling allows trail-braking into corners, with rear grip holding firm under load.

Data compiled from independent tests highlights the 675LT’s supremacy.

Road Manners: Surprisingly Usable

Beyond the track, the 675LT surprises with refinement. In Normal mode, it cruises highways with exceptional ride quality for a supercar, low cabin noise, and good visibility. Stop-start traffic poses no issue, with smooth low-speed manners.

Even on poor roads, the chassis remains composed, pushing bumps aside while steering communicates vividly. It’s thrilling yet livable, a ‘heart of darkness’ tamed for daily drives.

Interior and Driver Engagement

Lightweight P1-style seats grip occupants during high-g maneuvers. The cabin focuses on function—digital displays, paddles at hand, and start button igniting the V8’s roar. Visibility aids precision, and the lap analysis app (though sometimes finicky) provides data insights.

Physicality defines engagement: higher g-forces in all directions amplify immersion, soundtracking with titanium exhaust symphonies.

Comparisons: LT vs. Predecessors and Rivals

• Vs. 650S: Firmer, faster steering, more downforce, visceral feel—LT is the sharpened blade.
• Vs. MP4-12C: Overcomes early criticisms of aloofness with raw excitement.
• Vs. Porsche 911 GT3: Quicker in sprints and figures, though GT3 edges road usability.
• Vs. Lamborghini Huracán: Superior lap times, better balance.

Limitations and Considerations

The firm low-speed ride may deter comfort seekers, and tires demand warming for peak grip. Traction control is essential for mortals given power surplus. Only 500 units ensure exclusivity, commanding premium resale.

FAQs

What powers the McLaren 675LT?

A 3.8-litre twin-turbo V8 producing 675 PS (666 bhp), with extensive revisions for more torque and efficiency.

How does it perform on track?

Exceptional: Silverstone laps showcase neutral balance and speed; figure-8 in 22.4s, Willow Springs 1:24.29.

Is the 675LT road-friendly?

Yes, with adaptive suspension offering compliance in Normal mode, low noise, and easy traffic handling.

What are the key upgrades over 650S?

More power, 40% extra downforce, stiffer suspension, quicker steering, weight reductions.

Production numbers?

Limited to 500 coupés, emphasizing rarity.

Why the 675LT Endures

The McLaren 675LT encapsulates track purity without total road sacrifice. Its engineering— from aero tweaks to power delivery—sets benchmarks, thrilling drivers a decade on. For enthusiasts, it’s a collector’s gem blending brutality and finesse.