20. Mercedes CLS
Complex Says: The sleek Mercedes CLS started a whole new design trend when it was introduced. Since then, we have seen everyone from Volkswagen to Aston Martin create a four-door coupe. When it came time to update the CLS, Mercedes had some serious expectations to live up to. Luckily, the new CLS takes what was good about the old one and injects some SLS AMG-inspired muscle into it. We think it's a huge success.