The SLS AMG Black Series weighs 3,417 pounds, which is 154 pounds lighter than its GT sibling, but its race car performance carries a $73,500 premium – in terms of engineering and tuning, many ...

We can hereby report that the launch of the SLS AMG Black Series is done and dusted, the minute-long video below providing a soundtrack for the 622-horsepower coupe's recent announcement.

The SLS AMG Black Series is set to be the fastest ever Merc road car when it goes on sale next year. Power has been increased to 621bhp, almost 40bhp up on the recently launched SLS AMG GT model.