GMC 2013 GMC Sierra 1500 SLE1 2013 GMC Sierra 1500 SLE1 SPECIFICATIONS, PRICE & IMAGES Fuel Type: Gasoline Exterior Color: Black City MPG: 15 Interior Color: gray Highway MPG: 21 Drivetrain: RWD Transmission: automatic 6 speed Engine: 5.3L 8 Cylinder Engine Car Features Hot Car Deals!2020 Acura RDX w/Technology Pkg 2019 BMW i xDrive 2018 Dodge Charger SXT 2019 Chrysler 300 Limited 2015 Acura TLX V6 2019 Toyota RAV4 LE 2020 Kia Sportage S 2019 Mazda CX-5 Sport