The 2007 Mercedes-Benz E-Class is available as a 4-door, 5-seat sedan. Starting at $50,550, the 2007 Mercedes-Benz E-Class E 350 RWD Sedan is powered by a 3.5LL , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 26-mpg on the highway. The top of the line 2007Mercedes-BenzE-ClassE 550 AWD 4MATIC Sedan , priced at $ 61,500 , is powered by a 5.5LL , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 22-mpg on the highway.