The 2020 Mercedes-Benz AMG S 63 is available as a 4-door, 5-seat sedan. Starting at $151,600, the 2020 Mercedes-Benz AMG S 63 AMG S 63 AWD 4MATIC+ Sedan 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. The top of the line 2020 Mercedes-Benz AMG S 63 AMG S 63 AWD 4MATIC+ Cabriolet, priced at $183,500, is powered by a 4.0L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 24-mpg on the highway.