CAR has teamed up with McLaren sponsor Santander to bring you the chance to win one of these ace souvenirs – plus loads more prize opportunities including tickets to next year's British Grand Prix.
To win one of the helmets simply answer this question:
In which year was Jenson Button crowned F1 World Champion? Click here to enter
For more great prizes – including signed merchandise from Lewis and Jenson, VIP tours of McLaren's HQ and 2012 weekend GP tickets – click on the link below and check out the Competitions tab on Lewis and Jenson's Facebook page.
Competitions close: 1pm Thursday 1 December