Coca-Cola have recently produced a brilliant advert, parodying the world of GTA. The twist being that the character is now a good guy. In the advert we see the character (who bears more than passing resemblance to Claude from GTA3) hijacking a car and driving eratically, scaring shop owners and what not. With various other references to GTA (including a SWAT helicopter) and a catchy background tune, I think you'll like it.
Thanks to everyone who notified me of this link, there were many of you.