 Changes to the car from the road car includes a new 6-speed sequential motorsport gearbox; 380 mm ventilated brake discs with six-piston calipers at the front and four-piston units at the rear; a 52 mm wider track; revised suspension geometry and upgraded components.It is distinguished from the road car by larger air intakes and front splitter, and carbon fibre air intakes and a new rear wing.The 3.8-litre McLaren twin-turbocharged V8 engine, also used in the 12C-GT3, produces , and includes a new ECU to improve turbo boost and gearshifts.