The new Mercedes-AMG GT S Roadster Brand Mercedes-Benz Mercedes-AMG GT is expanding its family. The newborn is called the Mercedes-AMG GT S Roadster. A 4.0 liter, 522 horsepower and 670 Nm 4.0-liter V8 is housed under the hood of the new AMG GT S Roadster. It takes 3.8 seconds to reach 100 km /... By Car Division, 18 May, 2018