More accommodating than the standard Mercedes-AMG GT, the 4-Door Coupe takes on the likes of the Porsche Panamera, Audi A7 and BMW 8 Series Gran Coupe. It offers three high-performance models. The base 53 4MATIC+ is powered by a turbocharged 3.0-litre six-cylinder engine developing 429 hp. The mid-grade 63 4MATIC+ features a twin-turbo 4.0-litre V8 delivering 577 hp. Finally, the top-line 63 E Performance pairs the V8 with an electric motor and cranks output to 831 hp.