SLS AMG Black Series to come in coupe and roadster forms with 650 horsepower, price around $300,000-$350,000
Autobild reports that the Mercedes SLS AMG will be getting a horsepower bump using the M159 (M156 variant) pushing 650 horsepower. For those counting, that will be an increase of approximately 87 horsepower over the standard SLS. That would also be 104 horsepower per liter which is a very impressive specific output for a V8 of that size. The other interesting bit of news is that it will not be limited to just coupes but supposedly will be available as a top down roadster. We'll see if AutoBild got this right soon enough, expect official details on the 2013 model year to come out in the next few months.