Turkey Formula One Istanbul

epa02180050 German Sebastian Vettel ( L ) of Red Bull walks away after being forced to retire after a crash with his teammate Australian Mark Webber at Istanbul Park circuit in Istanbul , Turkey on 30 May 2010 . Lewis Hamilton won the Turkish Formula One Grand Prix ahead of McLaren team-mate Jenson Button . Mark Webber came third on a Red Bull to retain the world championship lead after losing the race lead in a collision with team-mate Sebastian Vettel .  EPA/STR