Portuguese GP
Keke Rosberg, Williams FW09B Honda, leads Nigel Mansell, Lotus 95T Renault, Alain Prost, McLaren MP4-2 TAG, Nelson Piquet, Brabham BT53 BMW, Ayrton Senna, Toleman TG184 Hart, Michele Alboreto, Ferrari 126C4, Elio de Angelis, Lotus 95T Renault, Patrick Tambay, Renault RE50, Stefan Johansson, Toleman TG184 Hart, Derek Warwick, Renault RE50, Riccardo Patrese, Alfa Romeo 184T, Eddie Cheever, Alfa Romeo 184T, Niki Lauda, McLaren MP4-2 TAG, Marc Surer, Arrows A7 BMW, Thierry Boutsen, Arrows A7 BMW, Manfred Winkelhock, Brabham BT53 BMW, Philippe Streiff, Renault RE50, and René Arnoux, Ferrari 126C4, at the start.
