We’ve seen Mercedes testing the upcoming AMG GT R Black Series for the past few months, with the company’s engineers once again putting a camouflaged test car through its paces on the Nurburgring.

The upcoming variant of the AMG GT R will sit at the top of the range, offering even better performance than the Pro version; in fact, AMG’s boss Tobias Moers went as far as saying a few months ago that this will be their fastest-accelerating model ever, at least until the AMG One hypercar arrives in mid-2020.

For months, we’ve been hearing that AMG will slap the ‘Black Series’ badge in the baddest AMG GT ever but there are some rumors that the Germans might use the ‘Evo’ moniker instead.

Also Read: Mercedes AMG GT Black Series To Be The Brand’s Quickest Accelerating Model Ever

In any case, AMG’s new range-topper will employ the same twin-turbo 4.0-liter V8 with its siblings, only here it will be tuned to produce around 630hp (638PS) – the same with the AMG GT 4-Door Coupe.

Both the existing AMG GT R and GT R Pro models offer just 577hp, along with a 0-62mph (100km/h) in 3.6 seconds and a top speed of 198mph (318km/h).

The biggest visual difference is obviously the even more aggressive aero kit, with the test car featuring bespoke canards up front, a bigger wing and a more prominent diffuser. Together with a reworked suspension and more powerful brakes, the upcoming AMG GT R Black Series is expected to offer one of the rawest and most special driving experiences in the market.

It’s been a long time since AMG gave us a new Black Series model, a designation reserved only for the most hardcore of their vehicles. Last time we got one was back in 2013 with the SLS Black Series.

Mercedes is expected to unveil the AMG GT R Black Series -or Evo, depending the rumors- early next year, targeting wealthy purist drivers with an unhealthy appetite for track days, which is essentially the same audience Porsche attracts with its GT cars.

Image Credits: S. Baldauf/SB-Medien for CarScoops