The 2004 Mercedes-Benz E-Class is available as a 4-door, 5-seat sedan. Starting at $50,550, the 2004 Mercedes-Benz E-Class E 320 RWD Wagon is powered by a 3.2L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 27-mpg on the highway. The top of the line 2004Mercedes-BenzE-ClassAWD Sedan , priced at $ 58,825 , is powered by a 5.0L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 22-mpg on the highway.