The 1990 Formula One season was the 41st season of FIA Formula One motor racing. It featured the 1990 FIA Formula One World Championship which commenced on 11 March 1990 and ended on 4 November after sixteen races. Ayrton Senna was World Champion Driver for the second time, and McLaren won the Constructors' Championship. Taken from http://en.wikipedia.org/wiki/1990_Formula_One_season.