2011 GMC Sierra 2500HD SLT 4WD Fire Red Vortec 6.0L V8 SFI VVT, 6-Speed Automatic HD Electronic with Overdrive, 4WD, Dark Titanium w/Vinyl Seat Trim.6-Speed Automatic HD Electronic with Overdrive Vortec 6.0L V8 SFI VVT 4WDReviews:* Impressive hauling and towing capabilities; refined and quiet ride; solid build quality; responsive steering; comfortable seats. Source: Edmunds* If you are a satisfied past or current Sierra HD owner, you will love these much-improved new ones despite their mostly carryover styling. Their performance, capabilities, refinement and fuel efficiency have improved, especially with their new and surprisingly quiet available Duramax turbo diesel V8. Source: KBB.comIndy'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.