The 2020 Mercedes-Benz AMG C 43 is available as a 4-door, 5-seat sedan. Starting at $55,950, the 2020 Mercedes-Benz AMG C 43 AMG C 43 AWD 4MATIC Sedan is powered by a 3.0L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 27-mpg on the highway. The top of the line 2020 Mercedes-Benz AMG C 43 AMG C 43 AWD 4MATIC Cabriolet, priced at $64,750, 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 25-mpg on the highway.