The 2021 Mercedes-Benz AMG GT is available as a 2-door, 2-seat coupe. Starting at $118,600, the 2021 Mercedes-Benz AMG GT Base Coupe 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 20-mpg on the highway. The top of the line 2021 Mercedes-Benz AMG GT C Roadster, priced at $165,100, 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 20-mpg on the highway.