I've got an 06 Mustang GT automatic, it is 300HP of good ol' American foot stompin Horsepower. The power to weight ratio on the GT is a tad superior to the non-supercharged Crossfire. In the real world out and out drag racing, I'd be inclined to give the edge to the Mustang. I think the Mustang in a drag would be about a half second quicker.

The Crossfire is better built, and will out drive the Mustang (as in road racing). 0 to 60 times is one thing, but the first one to the end of a quarter mile is someting else altogether. I don't belive, however, the Mustang is any faster top end and probably a tad slower.

Now, I'm basing this on my experiences with both cars, a 2006 Mustang 4.6/300hp with automatic and a 2006 Crossfire automatic 3.2/215 hp. and about 600 or so pounds difference between them.