LEWIS Hamilton has won his fourth Grand Prix in a row after dominating the Russian F1 race at Sochi.
And Mercedes have won their first constructors championship with three races to spare after a one-two with Nico Rosberg coming in second.
Hamilton, who had yet another flawless race, was just about assured victory after Rosberg made a mistake trying to overtake his teammate soon after a great start from both of them. Rosberg misjudged a corner trying to overtake Hamilton, locked his front tyres and in a puff of smoke his chance of victory was gone. He was forced in for an early pit stop to replace his tyres, then had to battle through the field to claim second spot.
It was a great drive, but Hamilton was never troubled. Bottas claimed third in his Williams ahead of Jenson Button in a McLaren. Hamilton is now 17 points ahead of Rosberg, with three races left in the season.