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! 2019 Audi Q8 3.0T Prestige 2008 Toyota 4Runner SR5 2020 Chevrolet Trax LT 2019 RAM 3500 Tradesman 2015 Ford Explorer Base 2019 INFINITI QX50 Luxe 2020 Buick Enclave Essence 2020 Chevrolet Camaro 1LT