Lewis Hamilton won his first world championship in 2008, and has since won in 2014 and 2015.
The 09 Formula One World Constructors' Championship was won by Brawn with a Mercedes engine.
The 1951 Formula One championship was won by Juan Fangio - (Argentina).
The 1950 Formula One championship was won by Emilio Giuseppe "Nino" Farina - (Italy).
fernando alonso won the 2004 world championship.
Sebastian Vettel is the only man to win the Indian Grand Prix as he has won all three editions of the race from 2011 to 2013, with the latter clinching his fourth Formula One World Championship. *As of 2014