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! 2020 GMC Sierra 1500 Denali 2019 Lincoln Continental Standard 2020 Buick Enclave Essence 2020 BMW X3 M Competition2019 Mazda Mazda3 AWD w/Preferred Package 2019 Toyota Highlander LE 2019 Jeep Grand Cherokee Limited 2019 Nissan Murano Platinum