Xbox is offering a limited edition Fiat Stilo for the winner of the latest Forza Tournament. The tournament which begins today challenges gamers to post their fastest time around the short Silverstone II circuit located in the time trials section. You must be racing a TVR Tuscan R and all times before 3am on Monday 12th September will count. To enter the competition, sign up at the Forza Challenge website.

The four fastest gamers will be invited to battle it out for the limited edition Fiat in Virgin Megastore's flagship Oxford Street store on 24th September.