Portuguese GP: Nigel Mansell, Williams FW11B Honda, leads Gerhard Berger, Ferrari F1-87, Ayrton Senna, Lotus 99T Honda, Nelson Piquet, Williams FW11B Honda, Alain Prost, McLaren MP4-3 TAG, Michele Alboreto, Ferrari F1-87, Riccardo Patrese, Brabham BT56 BMW, Thierry Boutsen, Benetton B187 Ford, Stefan Johansson, McLaren MP4-3 TAG, Eddie Cheever, Arrows A10 Megatron, Teo Fabi, Benetton B187 Ford, Andrea de Cesaris, Brabham BT56 BMW, and Derek Warwick, Arrows A10 Megatron, at the start.
Nigel Mansell, Williams FW11B Honda, leads Gerhard Berger, Ferrari F1-87, Ayrton Senna, Lotus 99T Honda, Nelson Piquet, Williams FW11B Honda, Alain Prost, McLaren MP4-3 TAG, Michele Alboreto, Ferrari F1-87, Riccardo Patrese, Brabham BT56 BMW, Thierry Boutsen, Benetton B187 Ford, Stefan Johansson, McLaren MP4-3 TAG, Eddie Cheever, Arrows A10 Megatron, Teo Fabi, Benetton B187 Ford, Andrea de Cesaris, Brabham BT56 BMW, and Derek Warwick, Arrows A10 Megatron, at the start.