The 2017 Mercedes-Benz AMG SLC 43 is available as a 2-door, 2-seat convertible. Starting at $60,300, the 2017 Mercedes-Benz AMG SLC 43 AMG SLC 43 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 29-mpg on the highway.