Mercedes-Benz and its in-house tuner AMG recently revealed its updated SL fleet but there’s one important model that we still are yet to see. The car is the upcoming SL Black Series from AMG, a super-sports version of the SL that could potentially upset the SLR flagship in the performance stakes. Numerous prototypes have been spotted testing in Germany, each of them sporting new bumpers, widened fenders and a GT wing, and now we the first solid details on the car’s final specifications.

The latest Black Series edition will be based on the turbocharged V12 SL65 (pictured) but will develop up to 670hp (66hp more than the standard model) and 1,000Nm (738lb-ft) of torque. Engineers decided not to bump up torque levels as this is as much as the car’s five-speed automatic transmission can maintain.

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