CAP
Congrats on finally making the order. No point spending that much money on a car you're not completely satisfied with. I think you'll be super happy with what you got, especially since you went with the brake package and skipped the appearance stuff. Substance over style any day, IMHO, doubly so if you plan on taking it to the track. The current GTs are finally the first "stock" mass production models that could hang with the last f-body edition, and it's about damn time
My trans-am would get 30 mpg at 70, and that was with the detuned LS-1 back in 1998. The only gripe I have with the current stangs is that they still look a bit chunky to me. After only 2 years living in the UK, the American muscle cars all look a bit overweight no matter how aggressive the styling gets. I see a mustang or any of the other current gen cars pull up, and I instinctively expect the guy who gets out to be 30-40 lbs overweight. I didn't think that way until I spent that time in the UK, but after that I just can't help but see why Euros consider americans lazy and fat. Even our cars look fat, but we don't realize it until we have something else to compare them with.
Still, the mustang is the best of the bunch right now. The camaro shares the same weakness as the dodges, namely the tiny slit windows. I'm not a gangster dammit, and I don't have my seat reclined so just my eyes peer out over the sill (and under the top curve of the steering wheel). The old f-bodies were ripped for being hard to see out of when compared to the mustangs, but my old firebird feels like a glass walled atrium compared to the camaro and dodges. The mustang wins that styling battle hands-down in my book, for both avoiding the retarded wanna-be gangsta look and keeping functional visibility part of the styling. Now just slim it down a bit so it doesn't look like it's been swilling so much beer/pizza, and it'll get back on my mid-life crisis list of stuff to buy when the kids move out. Right now the midlife crisis car of choice is the corvette, mostly because it doesn't look overweight.
Oh yea... I'd have gone for the blue
Black is safe but a bit too popular for me. Chase-me-red or a nifty deep blue are my preferences. If I ever decided to really go all-out modifying a car for high performance I'd consider yellow with black details but for daily driving a high performance car, red or blue stand out just enough that I never stand in front of someone else's car wondering why my remote isn't working