8-Speed Automatic with Overdrive, 4WD, Jet Black/Spice Red All-Terrain Leather. Recent Arrival! Priced below KBB Fair Purchase Price! Odometer is 6077 miles below market average! 2018 GMC Sierra 1500 SLT EcoTec3 6.2L V8 4WD Onyx Black Advertised Sale price may not... via vAuto, Inc.