Dean Lampe's car maybe? As in, an RCR built out with max-strength ally components? Maybe with a 550hp Roush lump?
....oh, and to be comparable to the FGT, about 900 lbs. of ballast!
J/K, I love the new FGT, but it is a HUGE car compared to the original-size package. Even still, I want both!
Just a thought - have you checked out Factory Five's GTM? Very GT-like in styling, but a modern take on the concept... I kind of like it....
http://www.factoryfive.com/gtmhome.html