Legendary video game firm Atari is celebrating its latest driving simulator with its 'Test Drive Unlimited - Be a Car Designer' sweepstakes. The contest challenges car buffs, gamers, designers and artists to create their own dream car.

The prize? The winner will receive $2,500, and their design will be incorporated into the game as "a fully functioning 3D vehicle."

Test Drive Unlimited goes on sale this September for the Microsoft Xbox 360 and Windows-based computers. Learn more by checking out TDU's flash-heavy microsite here.

[Sources: Atari; kakaku.com]