GMC 2011 GMC Sierra 1500 SLE 2011 GMC Sierra 1500 SLE SPECIFICATIONS, PRICE & IMAGES Fuel Type: E85 Flex Fuel Exterior Color: Black City MPG: 13 Interior Color: Black Highway MPG: 18 Transmission: Automatic Engine: 6-cylinder Car Features Hot Car Deals! 2014 Volkswagen Touareg Sport 2020 Chevrolet Silverado 1500 RST 2020 Chevrolet Silverado 1500 LT 2020 Ford Mustang GT Premium 2019 Toyota 4Runner Sport 2019 Toyota RAV4 Limited 2018 Nissan Altima 2.5 SL 2019 Dodge Charger SXT