Following the launch of the Mercedes-AMG GT R, Mercedes-AMG chairman Tobias Moers has just confirmed to Auto Express that a roadster variant of the AMG GT will come to light by the end of next year. In the interests of weight saving, the test unit spotted in these spyshots appear to use a fabric roof rather than a folding hardtop as on the SL, and can be seen here driving in convoy behind a new, turbocharged-era Porsche 991 Carrera cabriolet, with similar German plates. Coincidence?

“The convertible has moved well beyond the drawing board. It will be the next AMG GT model to arrive,” Moers said. The company chief isn’t worried that the open-roofed GT might cannibalise sales from the larger SL, which he sees as a grand tourer, while the AMG GT roadster “will absolutely be a proper sports car,” he said.

Rendering maestro Theophilus Chin has come up with his interpretation of the GT roadster. In this version, he’s envisioned the car as a folding hardtop. Moers pointed out that the regular AMG GT’s chassis was stiff enough to make it a sharp driver’s car, even accounting for losses in rigidity with the absence of the roof. When the roadster eventually reaches the market, it will likely be available as a standard GT and the GT S with 456 hp and 503 hp respectively, both from AMG’s 4.0 litre twin-turbocharged V8 engine.

Beyond the roadster, Moers also confirmed that another road-going AMG GT is in the works, although he wouldn’t be drawn on more details beyond that. Given that Black Series editions of AMG models have materialised in the past, it is likely that such a range-topper could come to being. The company has also plans to complement the range with track-only editions of the AMG GT, possibly a GT4 race car for customer programmes.

GALLERY: Mercedes-AMG GT S in Malaysia