The 2013 Aston Martin V12 Vantage Roadster’s ($233,340) redesigned rear decklid promises to provide high-speed stability and lower front intakes as you pepper around town with your top down and your bottoms off. The 6.0-liter naturally aspirated V12 engine delivers 510-horsepower and 470 pound-feet of torque; good enough for a 0-to-62 mph dash time of 4.5 seconds. Oh, and there’s plenty of carbon fiber on the exterior, so I’m sure people will be too busy noticing that to make a fuss about you being pantsless and all.