the fuel economy all depends on the driver, not the car.. i get 20+ mpg in my v6 auto driving to school 3 days a week and cruising around town the rest of the time, plus the insurance is higher in a newer gt.. and the newer v6's are almost as fast if not faster than the old 5.0's with few upgrades.. a set of springs, exhaust, and wheels, and a rear swaybar, and you can even outhandle a gt through the twisties... but definitely go with the 5-speed, i wish i had, and on 94-98's there are sometimes problems with the headgaskets (i havent had any, but thats what ive heard, mines a 97)