Rockstar London are giving away a money-can't-buy Saleen S281 3-Valve, a beast of an American muscle car fully customized by the maestros at DUB Magazine. Plus hundreds of runner-up prizes are up for grabs including t-shirts, caps, remote control cars and branded car paraphernalia. Click here to enter the competition and also to get more details on our massive and unprecedented mall tour, where we will be touring the game and giving away tons of Rockstar prizes on our stand.