GMC 2018 GMC Sierra 1500 Base 2018 GMC Sierra 1500 Base SPECIFICATIONS, PRICE & IMAGES Fuel Type: Gasoline Exterior Color: White City MPG: 17 Interior Color: Black Highway MPG: 22 Drivetrain: RWD Transmission: 6-Speed Automatic Engine: 5.3L V8 16V GDI OHV Car Features Hot Car Deals! 2019 GMC Sierra 1500 AT4 2019 Ford Edge SEL 2020 Acura MDX 2019 Chevrolet Silverado 1500 RST 2020 Acura RDX Base 2020 Acura TLX V6 2019 Mazda CX-3 Touring 2018 Chevrolet Equinox 1LT