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