The 2020 Chevrolet Suburban is available as a 4-door, 9-seat sport utility. Starting at $51,700, the 2020 Chevrolet Suburban LS 4x2 is powered by a 5.3LL , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 22-mpg on the highway. The top of the line 2020ChevroletSuburbanCommercial Fleet 4x4 , priced at $ 52,700 , is powered by a 5.3LL , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 21-mpg on the highway.