San Marino GP: Nigel Mansell, Williams FW11B Honda, leads Alain Prost, McLaren MP4-3 TAG, Gerhard Berger, Ferrari F1-87, Michele Alboreto, Ferrari F1-87, Teo Fabi, Benetton B187 Ford, Stefan Johansson, McLaren MP4-3 TAG, Eddie Cheever, Arrows A10 Megatron, Riccardo Patrese, Brabham BT56 BMW, Derek Warwick, Arrows A10 Megatron, Thierry Boutsen, Benetton B187 Ford, Martin Brundle, Zakspeed 871, Adrián Campos, Minardi M187 Motori Moderni, Alessandro Nannini, Minardi M187 Motori Moderni, Andrea de Cesaris, Brabham BT56 BMW, and Piercarlo Ghinzani, Ligier JS29B Megatron, at the start.
Nigel Mansell, Williams FW11B Honda, leads Alain Prost, McLaren MP4-3 TAG, Gerhard Berger, Ferrari F1-87, Michele Alboreto, Ferrari F1-87, Teo Fabi, Benetton B187 Ford, Stefan Johansson, McLaren MP4-3 TAG, Eddie Cheever, Arrows A10 Megatron, Riccardo Patrese, Brabham BT56 BMW, Derek Warwick, Arrows A10 Megatron, Thierry Boutsen, Benetton B187 Ford, Martin Brundle, Zakspeed 871, Adrián Campos, Minardi M187 Motori Moderni, Alessandro Nannini, Minardi M187 Motori Moderni, Andrea de Cesaris, Brabham BT56 BMW, and Piercarlo Ghinzani, Ligier JS29B Megatron, at the start.