The P1 powertrain is a hybrid partnership between a specially configured 727bhp version of McLaren’s 3.8-litre twin-turbo petrol V8, and a 176bhp McLaren-built electric motor integrated with it via a specially cast aluminium block. The two power units send their combined 903bhp (with 664lb ft of torque) through a seven-speed twin-clutch Graziano gearbox.
The V8 carries its own special M838TQ serial number because of its special crankcase and larger turbochargers (plus other unique tweaks), which help it produce 20 per cent more power than a ‘regular’ 12C V8.
“Our aim is not necessarily to be the fastest in absolute top speed,” said Sheriff, “but to be the quickest and most rewarding series production road car on a circuit. This is the true test of a supercar’s all-round ability and a much more important technical statement.”
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