Benetton finally won its first Grand Prix in Mexico, the penultimate race of the season. Despite Berger not having the outright fastest package, the durability and choice of compound of his Pirelli tyres meant that he did not need to make a pitstop for fresh ones, in comparison to rivals Nelson Piquet (Williams-Honda), Alain Prost (McLaren-TAG) and Nigel Mansell (Williams-Honda), who all lost time as a result of stops or other mechanical issues. It was generally agreed that the victory was a fitting culmination to Benetton's first season as an F1 constructor, Berger's emerging talent in what was the first of 10 career wins, and a vindication of the potential of the B186. The race would also prove to be the last win for the BMW M12 engine.