1 Jenson Button

Jenson Button talked about finding new challenges in his career after capturing the world title last year - and he showed he was not afraid of following it through when he opted to take on Lewis Hamilton at McLaren for 2010.

Although he has faced a barrage of scepticism over the move, Button could yet have the last laugh - with McLaren appearing to have built a car capable of fighting at the front this year.

Button needs to be at his best if he is to beat Hamilton but, with his confidence high after 2009, and McLaren adamant both drivers will be treated equally, the ball is firmly in his court ahead of the biggest fight of his life.