The 1999 Mercedes-Benz E-Class is available as a 4-door, 5-seat sedan. Starting at $42,400, the 1999 Mercedes-Benz E-Class E 300 Diesel RWD Sedan is powered by a 3.0L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 27-mpg in the city and 36-mpg on the highway. The top of the line 1999Mercedes-BenzE-ClassE 55 AMG RWD Sport Sedan , priced at $ 69,100 , is powered by a 5.4L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 23-mpg on the highway.