2017 GMC Sierra 1500 SLT 4WD Onyx Black 6-Speed Automatic Electronic with Overdrive, 4WD, Dark Ash/Jet Black w/Leather Appointed Seat Trim.6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8 4WDAwards:* 2017 KBB.com Brand Image AwardsReviews:* Strong combination of fuel economy and power; comfortable, quiet cabin; compliant ride quality makes it suitable for daily use; many available configurations and trims 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.