Dude, answer me this. Back when Ford DID make a Cobra, did they have a GT500? No, they didn't. The 2004 Mustang GT is to the 2004 Mustang Cobra, as the 2010 Mustang GT is to the 2010 GT500.
Why would they make another supercharged Mustang if they already have the GT500?
And by the way...