I recommend that you stick with the GT boards and leave us alone. None of us is interested in listening to more of the V6 vs. GT blurb.
I have 20 inch wheels, dealer installed and get about 22 mpg on the Hwy. I don't do a lot of city driving.
I've got 20" rims with the Eibach Pro kit, lowered by about 1.5 inches. No vibrations, great handling and awesome looks!