What is faster a Ford GT the Chevrolet Corvette or the Dodge Viper?

The Dodge Viper is the fastest in these models. But son, you don't compare a Mustang GT to a Corvette and Viper. Here is the class a GT Mustang belongs in. Mustang GT, Challenger SRT8, Camaro SS. The only Ford vehicle that would compare to the Corvette and Viper would be the Shelby GT500 Mustang. And, in the Mustang GT group, it wins with the new 2011 5.0L V8.