laikam jau nopietnākās atšķirības ir:
Highly respected British designer, Peter Stevens who designed the McLaren F1 and Subaru WRC car developed a front spoiler extension together with a new design of rear spoiler following extensive wind tunnel tests to reduce lift and improve balance. In fact, the P1 requires 3 less bhp to achieve 100 mph compared to the GT Turbo. Stevens was also responsible for the titanium look OZ wheels.