Inside Line reports that a conversation with Mercedes spokespeople has revealed that the 6.2-liter in the C63 will not be tweaked for Black Series duty, opting instead for the company's twin-turbo 5.5-liter mill. That powertrain, as you may recall, already puts out 571 horsepower and 664 pound-feet of torque in the S63 AMG. That's 71 more ponies than the the CLK AMG Black Series and more twist than almost anything this side of a diesel-powered heavy-duty pickup truck. That should help justify the expected $100k-plus price tag of the rarest of AMG variants, while simultaneously making every BMW M3 owner a bit leery of a race with the Black Series coupe. Let's just hope it maintains the otherworldly bark of the naturally aspirated 6.2-liter, which is one of the C63's primary draws.
[Source: Inside Line]