It's not every day that a two-year old game gets new DLC--and for free, to boot. It's also pretty rare to get the ability to drive a hotly anticipated prototype car before its unveiling. So, color us surprised that the Corvette C7 prototype has become a free add-on for Gran Turismo 5.

Now available on the PlayStation Store, the Corvette C7 prototype is fully playable in Polyphony Digital's PS3 racer. While you'll be able to get a feel for the car, you won't actually be able to see what it looks like. Even in digital form, the car is veiled in secrecy. Still, car buffs will love the chance to get their virtual hands on the car before its January 13th unveiling.