I just took my 07 GT on it's first road trip, I took it to W,Va. I averaged 24 mpg and it was a pleasure to drive on the interstate. Where it really shined, was on those curvey mountain roads. Even with stock suspension, it handled like it was on rails, this thing is a blast to drive in the twisties. Here in northern Ohio, the roads are straight and boreing. It does need a set of 4:10's to really straighten those curves and power up the steeper inclines, 4th and 5th gear were useless at times. 4:10's should give be back 4th. For you flatlanders, I sugest you take your stang to the mountains to really see what it can do, you won't be disapointed!!!!!!!!!!!!!!!