The drivers' title was won by Ayrton Senna – his first title – after a season-long duel with McLaren-Honda teammate and then double world champion Alain Prost. Prost scored more points, but since not all results counted, Senna took the title, his best eleven results being better than Prost's. McLaren strode to the constructors' title, scoring more than three times the amount of points that second-placed Ferrari scored.