The 2012 Chevrolet Suburban 1500 is available as a 4-door, 7-seat sport utility. Starting at $42,220, the 2012 Chevrolet Suburban 1500 LS 4x2 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 21-mpg on the highway. The top of the line 2012 Chevrolet Suburban 1500 Commercial Fleet 4x4, priced at $45,065, 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 21-mpg on the highway.