2016 GMC Sierra 1500 SLE 4WD Iridium Metallic 6-Speed Automatic Electronic with Overdrive, 4WD, Jet Black w/Cloth Seat Trim.6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8 Flex Fuel 4WDAwards:* 2016 KBB.com Brand Image AwardsReviews:* Powerful and efficient engines; improved tech interfaces for 2016; versatile and comfortable interior; superior ride quality on Denali trim. Source: EdmundsIndy's largest selection of Buicks, GMC Trucks, Kias and Mitsubishis. Ray Skillman Auto Center in Indianapolis, IN, also serving Greenwood, IN and Plainfield, IN is proud to be an automotive leader in our area. Since opening our doors, Ray Skillman Auto Center has kept a firm commitment to our customers. We offer a wide selection of vehicles and hope to make the car buying process as quick and hassle free as possible. Conveniently located just 1/2 mile north of Greenwood Park Mall on US 31 S.