2013 Dodge Viper SRT

If you can ignore that fact that your tax dollars bailed this company out, then read on for one heck of a beastly car.  The 2013 Dodge Viper SRT starts off with a 8.3L V10 engine making 640 horsepower and 600 pounds of torque.  That horsepower is put to the street through a 6-speed manual transmission (no automatics available).  The car is made of a mix of carbon fiber and aluminum bringing the weight to just 3,297 pounds.  The only other cars on the street with a better power to weight ratio are the Bugatti Veyron and the Ferrari F12.