Mexican GP
Riccardo Patrese, Williams FW12C Renault, leads Michele Alboreto, Tyrrell 018 Ford, who locks up, Thierry Boutsen, Williams FW12C Renault, Derek Warwick, Arrows A11 Ford, Alessandro Nannini, Benetton B188 Ford, Stefano Modena, Brabham BT58 Judd, Jonathan Palmer, Tyrrell 018 Ford, Ivan Capelli, March CG891 Judd, and Andrea de Cesaris, Dallara BMS-189 Ford, at the start.