2007 Pontiac Grand Prix GXP 4dr Sedan (5.3L 8cyl 4A)
the v-8 is fast while still getting great mileage. i average 22 mpg with a good mix of city and hwy driving. as the editors review says, there may be to much torque because of the powerful v-8; however i wouldn't trade down the horsepower. great car. good mix of sports car, fuel economy, and luxury vehicle.