The 2017 Mercedes-Benz E-Class is a 4-door, 5-seat Sedan, available in 7 trims, ranging from the E300 AWD 4MATIC Sedan to the E550 RWD Cabriolet. Upon introduction, the $54,650 E300 AWD 4MATIC Sedan is equipped with a standard 2.0L, 4-cylinder, engine that achieves 22-mpg in the city and 29-mpg on the highway. an Automatic transmission is standard. The $69,100 E550 RWD Cabriolet is equipped with a standard 4.7L, 8-cylinder, engine that achieves 17-mpg in the city and 25-mpg on the highway. an Automatic transmission is standard.