The result is increased downforce, with the 600LT producing 100kg of downforce at 155mph with a 40/60 front/rear split.
The other major aesthetic and engineering difference is top-exit exhausts, which deliver “substantial” weight saving while creating a more raucous sound.
Dynamics and driver engagement
McLaren said that the remit of the 600LT is “to engage and excite drivers to the highest levels imaginable”.
To get the most out of the 600LT on track, McLaren has made some adjustments to the standard Sports Series models’ suspension. The 600LT uses forged aluminium double wishbones, stiffer hollow anti-roll bars and recalibrated dual-valve dampers. Goddard said the focus was “on low speed agility and high-speed stability”.
McLaren also claims “phenomenal stopping power and precise pedal feel” from the 600LT. It uses lightweight calipers and carbonfibre brake discs from the 720S, along with a Senna-inspired brake booster.
The bespoke Pirelli P-Zero Trofeo R tyres play a role, helping to achieve "cornering speeds exceeding those of the 675LT".
Goddard commented: “So we could have high agility and increase the steering ratio, the rear end is very strong. The tyres are important, too.
“The 600LT has the same effect — and more — as the 675LT on track. You come out of the first corner smiling. But in normal mode, you can comfortably drive on UK roads. It feels like something special.”
McLaren has not yet confirmed production numbers, stating only that it will be “strictly limited” and that the specialist carbonfibre body panels will “ensure it is significantly rarer than its Sports Series brethren”. It is expected to be similar to the 675LT coupé, of which only 500 were built.