The 2011 Mercedes-Benz S-Class is available as a 4-door, 5-seat sedan. Starting at $158,050, the 2011 Mercedes-Benz S-Class S 600 RWD Sedan is powered by a 5.5L, 12-cylinder engine mated to an automatic transmission that returns an EPA estimated 12-mpg in the city and 19-mpg on the highway. The top of the line 2011 Mercedes-Benz S-Class S 400 Hybrid RWD Sedan, priced at $91,000, is powered by a 3.5L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 25-mpg on the highway.