Clean CARFAX. Red Quartz Tintcoat 2020 GMC Sierra 1500 AT4 4WD 10-Speed Automatic 3.0L I6 This 2020 GMC Sierra 1500 is a great deal.. here's why.., 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather. Recent Arrival! Odometer is 39148 miles below market average! 22/26 City/Highway MPG