If you’re not keeping up with the news stream, you might think that the addition of the new 4-Door Coupe has rounded of the Mercedes-AMG GT family.

This, however, is not the case as AMG boss Tobias Moers has already confirmed that they’re developing a Black Series model, which is believed to arrive around 2020.

The Mercedes-AMG GT Black Series (name unconfirmed) will get dangerously close to modern supercars in terms of both power and performance. The exact number that will be produced by the twin-turbo 4.0-liter V8 is unknown, but we could be looking at 640 PS (630 hp / 470 kW) and 900 Nm (664 lb-ft) of torque or, in other words, as much as the AMG GT 4-Door Coupe S.

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The latter needs only 3.2 seconds to sprint to 100 km/h (62 mph) and is capable of reaching a top speed of 315 km/h (195 mph). Since the Coupe Black Series will be more compact and lighter, it’d be normal to presume that it’ll hit the same mark in 3.0 seconds, or even less.

Another rumor talks about 612 PS (603 hp / 450 kW) and 850 Nm (627 lb-ft) of torque, which is the output of the latest Mercedes-AMG E63 S. The super saloon goes from 0 to 100 km/h (0-62 mph) in 3.3 seconds, and maxes out at 300 km/h (186 mph), with the optional AMG Driver’s Package.

Whatever the case may be, one thing is certain: the Mercedes-AMG GT Black Series is coming, and some prototypes spied at the Nurburgring recently might just be the range-topping GT conducting some testing

Scooped running in between the apexes, the prototypes feature AMG’s Panamericana signature grille and have some camouflage covering different parts of their exterior. Anyway, we still have some way to go before its launch, so we guess we’ll see plenty of the reborn Black Series in the future.