The 2021 Chevrolet Suburban is available as a 4-door, 9-seat sport utility. Starting at $51,700, the 2021 Chevrolet Suburban LS 4x2 is powered by a 5.3L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 20-mpg on the highway. The top of the line 2021 Chevrolet Suburban Commercial Fleet 4x4, priced at $53,700, is powered by a 5.3L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 19-mpg on the highway.