get an LT1 trans-am or camaro....can't go wrong, I love mine

can't tell you exactly how much MPG I get, but I get from Gainesville to Sanibel (300+ miles) on a little less than a full tank (going about 90+ mph most of the time)....mine's a convertible though and I believe the tank's a couple gallons smaller than a hardtop anyways.....either way the Lt1 gets relatively good gas mileage in both city/highway