I only have first hand experience w/the GT 500.My neighbor is a collector and has 7 yes SEVEN GT500's. He just p/u a Blk/Blk vert last week. He has the original window stickers on 5 of them and they were trailered from the dlr to his house. He plans on keeping them w/ under 5 miles and stickers still on the windows. He has just about every color combo you can get.
I have put about 100 miles on his white one w/ blue strips. The car is great, nothing to brag about but fast enough, handles ok, built fairly well and stops when you want. I am spoiled by my 06 M3's build quality but I still dig the stang. I hate how when you shift the whole body pitches forward then when you hit the gas it reels back on its heels. My m3 is rock stable regadless what you are doing but I guess that messed up weight balance and extra 460 lbs up front does this.
I can also give reviews of his AMG SL 65, C6 Z06, Bently GT, 2 Ford GT's
my fav, 1966 fast back stang, ferrari 430 & 575, Porsche Carerra GT
(his DD) and his GT3 RS(wont let me drive but have ridden it) It is the KING of cars except for the CGT.
Yeah he has a crowded gargage