How do I unlock the chevrolet camero concept in need for speed carbon?

I have an xbox 360 and the need for speed carbon collector's edition. How would I go about unlocking the Chevrolet Camero Concept car. I was told that it was won in the quick races, but what exactly do you have to do in the quick race mode?|||I'm sorry, I gave up the game because it's hard, you should check this website, maybe they could help http://www.cheatcodesgalore.com/xbox360/鈥?/a>