Mexican GP
Ayrton Senna, McLaren MP4-5 Honda, leads Nigel Mansell, Ferrari 640, Alain Prost, McLaren MP4-5 Honda, Gerhard Berger, Ferrari 640, Riccardo Patrese, Williams FW12C Renault, Michele Alboreto, Tyrrell 018 Ford, and Thierry Boutsen, Williams FW12C Renault, into the first corner at the start.