We're here at the Goodwood Festival of Speed, and before our run up the hillclimb in the 650S Le Mans Edition, McLaren invited us for a private viewing of this stunning P1 inspired by the helmet of the greatest driver of them all, Ayrton Senna. Finished in yellow and green, the hybrid hypercar has been restyled by MSO and follows yesterday's unveiling of the Alain Prost-inspired P1. Why has McLaren built these cars? Because a customer wanted them. Yep, both these stunning P1s are destined for the same owner. Some guys have all the luck. Photos by Adam Lynton