San Marino GP: Nigel Mansell, Williams FW11B Honda, leads Ayrton Senna, Lotus 99T Honda, Alain Prost, McLaren MP4-3 TAG, Michele Alboreto, Ferrari F1-87, and Gerhard Berger, Ferrari F1-87.
Nigel Mansell, Williams FW11B Honda, leads Ayrton Senna, Lotus 99T Honda, Alain Prost, McLaren MP4-3 TAG, Michele Alboreto, Ferrari F1-87, and Gerhard Berger, Ferrari F1-87.