He finish 11.5 seconds ahead of RÃ ikkÃ nen . It was Hamilton 's 10th career win and the first for a KERS-equipped car . Hamilton repassed Webber on lap five and following Alonso 's retirement on lap 13 , he led the remainder of the race to finish 11.529 seconds clear of RÃ ikkÃ nen and take his 10th career win and the first for a KERS-equipped car .