The 2017 Mercedes-Benz GLA-Class is available as a 4-door, 5-seat sport utility. Starting at $32,850, the 2017 Mercedes-Benz GLA-Class Base is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 25-mpg in the city and 35-mpg on the highway. The top of the line 2017 Mercedes-Benz GLA-Class Base, priced at $34,850, is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 24-mpg in the city and 32-mpg on the highway.