Although in the 2010 season Mercedes took part in the Formula 1 races with their own team, the engine supply contract with McLaren remained in place. Therefore in 2010 also, the silver/red MP4-25 is powered by a 780 bhp Mercedes-Benz 8-cylinder engine. The completely redesigned car is conspicuous for its rear double diffuser, a long fin extending to the rear wing and an unusual overall length of 4.8 m. Jenson Button, 2009 World Champion drives the McLaren-Mercedes MP4-25 starting in pole position. After his wins in Australia and China and several second places, after the 14th race he had already clocked up 165 points and had early on secured his position among the leading five drivers.