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 Lincoln Aviator Reserve RWD 2014 FIAT 500L Easy 2017 Chevrolet Tahoe LS 2020 Honda Pilot Elite 2020 Jaguar F-PACE 25t Prestige 2020 Volkswagen Tiguan 2.0T S 2014 GMC Acadia SLT-2 2018 Mercedes-Benz C 300