British GP: Ayrton Senna, McLaren MP4-5 Honda, leads Alain Prost, McLaren MP4-5 Honda, as Nigel Mansell, Ferrari 640, leads the rest of the field.
Ayrton Senna, McLaren MP4-5 Honda, leads Alain Prost, McLaren MP4-5 Honda, as Nigel Mansell, Ferrari 640, leads the rest of the field.