Pontiac 2008 Pontiac Grand Prix GXP 2008 Pontiac Grand Prix GXP SPECIFICATIONS, PRICE & IMAGES Fuel Type: Gasoline Exterior Color: Grey City MPG: 16 Interior Color: grey Highway MPG: 25 Drivetrain: FWD Transmission: automatic 4 speed Engine: 5.3L 8 Cylinder Engine Car Features Hot Car Deals! 2018 Hyundai Santa Fe Sport 2.4L 2020 Hyundai Tucson Ultimate 2020 Cadillac XT5 Premium Luxury 2020 Jeep Cherokee Latitude Plus 2019 Nissan Rogue SV 2020 Mercedes-Benz Base 2020 Chevrolet Trax LS 2019 Ford F-250 Limited