The Mercedes SLS AMG Black Series was spied again during its usual runs on the Nordschleife. Unfortunately, the even higher performance SLS is still covered in camouflage tape, so we can really distinguish any of its styling details. There are various rumors regarding the new SLS Black. Some say it's going to be as much as 50 kg lighter than the standard vehicle. However, the power will come from the same engine, but with more horsepower.