The 2020 Mercedes-Benz S-Class is available as a 4-door, 5-seat sedan. Starting at $97,250, the 2020 Mercedes-Benz S-Class S 450 AWD 4MATIC Sedan is powered by a 3.0L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 28-mpg on the highway. The top of the line 2020 Mercedes-Benz S-Class S 560 RWD Cabriolet, priced at $138,600, is powered by a 4.0L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 26-mpg on the highway.