Piccola, I very much enjoy tracking all my cars. The FGT got me started for as we all know that was why this vehicle was born. Well maybe centennial celebration had something to do with it as well. The track heritage of the FGT speaks for itself. The design team gave us all one heck of a track superstar.
The GT500 was added for "street fun" and at 500 hp (2007) was usually unbeatable. And at $35-45K much more approachable and obtainable by "Joe" (see above thread). I did not have to worry about the Mustang nearly as much as the FGT leaving it parked at an event, and the GT500 could be replaced if necessary as it was still in production. The FGT always turns heads, and the GT500 does also but to a slightly lesser extent.
So tracking was started in the FGT and moved to the Mustang for additional fun. The mustang was different. Much heavier all around and significantly more so with the iron block 5.4 and supercharger in front. I was much more reliant on the brakes which taught me my first lesson in brake fluid boiling. I was learning.
I made the leap to the Boss for three reasons: 1) one-third the liability of the GT in an incident, 2) Lighter, aluminum 5.0 Roadrunner track inspired engine normally aspirated, and 3) the promise from Ford engineers this was the best live axle Mustang to ever be developed. The 5 FGT owners who brought their Bosses to Miller this year had a great time on the track with other GT's. The Boss is stellar in track performance and is a blast to drive. Ask Ron-the-Rocketman what he thinks. Unfortunately delivery of his LS did not give him time to take it to Miller with the GT's.
While I am sure you could have a great time on the track with the new super powerful GT500, at 444hp, a track-tuned suspension, significantly lighter and less costly (you can probably get a '12 Boss for around $42K), IMO starting out tracking a fun car, the Boss is hard to beat. And you would have the extra $10-15K for track time instruction and Hoosiers!:biggrin