Mercedes-AMG is extending its sports car portfolio with the new AMG GT S Roadster as an open-air model. The basis for the high driving performance of the new AMG GT S Roadster is the combination of a lightweight aluminium spaceframe, a V8 biturbo engine, a seven-speed dual-clutch transmission, a rear axle locking differential and a sport suspension with aluminium double wishbone axles, a press release said.

Compared to the AMG GT Roadster, the AMG GT S Roadster is rendered even more dynamic by numerous modifications to the engine, suspension, brakes, design and interior. This positions it between the AMG GT Roadster and the even more powerful AMG GT C Roadster.

The AMG 4.0-litre V8 biturbo in the AMG GT S Roadster delivers an output of 522 hp and maximum torque of 670 Nm. This is available over a wide engine speed range from 1900 to 5000 rpm. A sprint from standstill to 100 kmph takes 3.8 seconds. Top speed is 308 kmph.

The two turbochargers of the V8 are not positioned on the outside of the cylinder banks, but inside the cylinder “V”. The dry sump lubrication also ensures the oil supply even with high lateral forces and allows the engine to be installed lower, thus moving the centre of gravity closer to the road and forming the basis for high lateral acceleration, the release said.

Thanks to the wide gear ratio spread, the decidedly high torque of the V8 biturbo engine can be used to optimum effect, the company claimed.

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