The 2017 Mercedes-Benz CLA-Class is available as a 4-door, 5-seat sedan. Starting at $34,400, the 2017 Mercedes-Benz CLA-Class Base is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 26-mpg in the city and 38-mpg on the highway. The top of the line 2017 Mercedes-Benz CLA-Class Base, priced at $32,400, is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 26-mpg in the city and 38-mpg on the highway.