Ayrton Senna da Silva ( Portuguese pronunciation : ( aˈiɾtõ ˈsenɐ da ˈsiwvɐ ) ; 21 March 1960 - 1 May 1994 ) was a Brazilian racing driver who won three Formula One world championships .
Ayrton Senna da Silva ( March 21 , 1960 - May 1 , 1994 ) , better known as Ayrton Senna , was a Brazilian Formula 1 driver who won the championship three times , in 1988 , 1990 and in 1991 .