The 2014 Mercedes-Benz S-Class is available as a 4-door, 5-seat sedan. Starting at $92,900, the 2014 Mercedes-Benz S-Class S 550 RWD Sedan is powered by a 4.7L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 25-mpg on the highway. The top of the line 2014 Mercedes-Benz S-Class S 63 AMG AWD 4MATIC Sedan, priced at $139,500, is powered by a 5.5L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 23-mpg on the highway.