NEW CAR SPOTLIGHT: 2021 GMC Sierra 1500 Double Cab Standard Box 4-Wheel Drive SLE - Apple CarPlay - Keyless Start - HD Rear Vision Back-Up Camera Shop this vehicle online today at davesinclairbuickgmc.com! #gmc #gmcsierra #sierra #2021gmc #2021gmcsierra #newcar #newtruck #car #cars #truck #trucks #newtruck #truckforsale #carforsale #2021truck #newtruckforsale #newcarforsale #stl #stlouis #cardealership #gmcsierra1500 #sierra1500