The 2015 Mercedes-Benz E-Class is available as a 4-door, 5-seat sedan. Starting at $59,400, the 2015 Mercedes-Benz E-Class E 550 RWD Coupe is powered by a 4.7L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 26-mpg on the highway. The top of the line 2015Mercedes-BenzE-ClassE 400 AWD 4MATIC Sedan , priced at $ 64,850 , is powered by a 3.0L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 28-mpg on the highway.