All the attention was centred on the fight for the 1986 world championship. Would Nigel Mansell finish ahead of Piquet and Prost to clinch the title? Would Piquet score another win, or even Prost, and take the championship down to the wire in Australia?
That's what everyone was asking on Sunday morning, but by 3pm on Sunday afternoon it was Gerhard Berger and his Pirelli-shod Benetton-BMW that had upset the predictions.
Piquet looked like running away with the race, but fell out of the running with blistered tyres. Mansell made two stops, but was delayed right from the start when he limped off the line close to last.
Prost's tyres were gone at the end, but he was afraid to stop because of an engine problem while Senna was forced to make two stops for rubber.