The 2018 Mercedes-Benz AMG C 43 is available as a 4-door, 5-seat sedan. Starting at $53,400, the 2018 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 20-mpg in the city and 27-mpg on the highway. The top of the line 2018 Mercedes-Benz AMG C 43 AMG C 43 AWD 4MATIC Coupe, priced at $55,900, is powered by a 3.0L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 27-mpg on the highway.