 The engine is mated to the same 7-speed dual clutch transmission as in the 12C but it has been recalibrated for faster shift times.The 650S comes with new aluminium forged wheels wrapped in Pirelli P Zero Corsa tyres having wider contact patch than the previous versions for improved grip.In order to improve ride quality, McLaren used ProActive Chassis Control (PCC) which is a derivative of McLaren's F1 active suspension system.