3. Ford Mustang
What it is: The new soul of Detroit
Complex Says: In 2005, the new Mustang awed the country with its retro design. While 2005 'stangs are woefully commonplace now, it's still a cool car, and we have it to thank for the whole retro movement in automotive design. Would we have gotten the new Camaro, Challenger, or SLS AMG without it?