1991 was yet again the showdown for the Drivers' Championship, and it saw Senna and this time Mansell in a competitive but rather unreliable Williams battle for the Drivers' Championship. Prost did not win a race in his uncompetitive Ferrari that year and it turned out to be his last race for the Scuderia that year; he was fired from the team after the race for describing the 643 as having handling like "a truck". This was the last straw for Ferrari; as Prost had been making unsavory comments about the Italian team for some time. The race started, and Mansell went off at the first corner on lap 10, and Senna won his 3rd Drivers' Championship in 4 seasons. Senna let his teammate Gerhard Berger through to win as a "thank you" gesture for his support all season. But during the post-race press conference, Senna then admitted that his actions in 1990 were indeed intentional, and he then called Balestre and the rest of the governing body "stupid people". He admitted that he did what he did the year before because of his refusal to put up with Balestre's continuously illegal manipulation of the Drivers' Championship.