Goodness gracious, the roadsters sure look different than last year. Appealing to a more youthful audience, Mercedes ditched the long, sedate look in favor of an aerodynamic, almost racy sports car. Available with a 320-horsepower V8, this car is the most powerful in its class. The convertible top is entirely automatic and a pop-up roll bar will protect occupants in the event of a roll-over accident.