The world has been waiting for a Mercedes-AMG GT R Black Series for some time now, and the car is in the midst of testing before (hopefully) launching towards the end of the year or in early 2020.

This video shows the hardcore GT R undergoing a series of tests at the Nurburgring. Despite what the title of the clip says, we’re highly doubtful that the prototype in question is fitted with an inline-six engine, even though the car is suspiciously quiet for a vehicle with a twin-turbocharged, 4.0-liter V8.

However, what gives away its identity are the eye-popping aerodynamic components that are even more aggressive than those of the AMG GT R and GT R Pro.

Also Read: 2020 Mercedes AMG GT R Black Series Wants To Become Porsche’s Worst Nightmare

At the front, for example, you will find huge canards on either side of the front bumper. Additionally, the prototype features aerodynamic fins just behind the front wheel arches to manipulate the air around the car’s body. The prototype also includes a towering rear wing, massive brakes with gold calipers, and a quartet of tailpipes.

Specifics about the engine of the Black Series remain limited, but we expect it to pump out about 630 HP, or the same as the GT 63S 4-Door Coupe. This will make for one hell of a track car, and while it may not be able to rival the Porsche 911 GT2 RS, it should be one of the fastest rear-wheel drive sports cars around circuits like the Nurburgring.