2021 GMC Sierra 1500
The 2021 GMC Sierra 1500 is a 2-door, 3-seat Regular Side, available in 27 trims, ranging from the 4x2 Regular Cab to the Elevation w/3VL 4x4 Crew Cab 6' Box. Upon introduction, the $30,100 4x2 Regular Cab is equipped with a standard 4.3L, 6-cylinder, engine that achieves 16-mpg in the city and 21-mpg on the highway. an Automatic transmission is standard. The $47,200 Elevation w/3VL 4x4 Crew Cab 6' Box is equipped with a standard 2.7L, 4-cylinder, engine that achieves 18-mpg in the city and 21-mpg on the highway. an Automatic transmission is standard.