Those figures are enough to see the vehicle reach 100km/h from stand still in just 3.8 seconds before topping out at 308km/h - and remember, this one isn't even the fastest variant. An output of 515bhp places the GT S between the standard 469hp GT and the GT C's 549hp.
On the outside, the GT S Roadster looks quite identical to other variants.
Like all AMG GT models, the GT S Roadster is powered by a 4.0-liter twin-turbocharged 4.0-liter V-8 mated to a seven-speed dual-clutch transmission and spinning the rear wheels.
Standard equipment also includes the electronically controlled limited-slip differential at the rear axle, and AMG high-performance composite braking system (ceramic composite brakes are optional).
Peak output is 515 horsepower and 494 pound-feet of torque, which will see the auto sprint to 60 miles per hour from rest in 3.7 seconds and top out at 192 miles per hour. Meanwhile, the GT S top speed clocks in at 192 miles per hour, compared to 196 miles per hour for the GT C and 188 miles per hour for the base vehicle.
As with the tin-top, the Roadster has an aluminium-intensive body and structure, while the three-layered soft-top roof is supported by a lightweight structure of magnesium, steel and aluminium. Additional roll-over protection is provided by an integrated aluminum cross-member, while the inserted acoustic mat improves noise comfort. In the rear, there are 14.2-inch brake discs and single-piston fixed calipers.
And there's plenty of luxury, too. This means sports seats wrapped in Artico faux leather and Dinamica microfibre with the optional extra being nappa leather. This lines the center console surround, air vent bezels and trim strips in the door armrests in silver chrome.
Mercedes-AMG is already taking orders for the new GT S Roadster, with the market launch scheduled for July 2018.