a March had finished on the podium of a Grand Prix since the 1976 Italian Grand Prix. Fuel problems were a feature of this race: on the last corner of the race Alboreto's engine stuttered-his car was running out of fuel despite the gauge indicating he had plenty left. Boutsen passed him to get his 5th podium of the year and Warwick claimed 4th place. The dry Ferrari of Alboreto and McLaren of Senna were classified 5th and 6th. Prost's 5th win of the year, and his first since France, along with Senna's 6th place, saw him remain in strong contention for his third World Championship. Classification Pre-qualifying Qualifying Race Championship standings after the race Bold Text indicates World Champions. Drivers' Championship standings Constructors' Championship standings Only the top five positions are included for both sets of standings. Points accurate at final declaration of results. The Benettons were subsequently disqualified from the Belgian Grand Prix and their points reallocated. References Portuguese Grand Prix Portuguese Grand Prix Portuguese Grand Prix Portuguese Grand Prix