The 2018 Mercedes-Benz AMG GLC 63 is available as a 4-door, 5-seat sport utility. Starting at $69,900, the 2018 Mercedes-Benz AMG GLC 63 AMG GLC 63 AWD is powered by a 4.0L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 22-mpg on the highway. The top of the line 2018Mercedes-BenzAMG GLC 63S AMG GLC 63 Coupe AWD , priced at $ 80,750 , 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 22-mpg on the highway.