According to Mercedes, the AMG Vision Gran Turismo Racing Series was designed to compete in Gran Turismo 6’s “competitive racing scene.” As far as performance goes, the AMG Vision Gran Turismo Racing Series is powered by a 5.5-liter, twin-turbo, V-8 engine that produces an impressive 591 horsepower and connected to a seven-speed, dual-clutch transmission. No performance numbers were given, but seeing as the car only weighs 2,866 pounds, it should be good for at least 200 mph.
Source: Top Speed