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 2018Mercedes-BenzAMG C 43AMG 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.