The new C63 AMG definitely has the power to justify its billing as the M3 Killer, but there’s apparently no stopping Mercedes-Benz and AMG when it comes to pushing the envelope on performance. That’s because the automaker and its performance wing is still working on a hardcore version of the C63 AMG, the Black Series, and it was recently caught testing in cold weather.
The exterior gets some changes for the Black Series. The spy shots show wider fender flares, and while they aren’t shown, there will also be a new front spoiler, an updated rear diffuser, and updated LED running lights as well as headlamps.
The same engine is available—the 6.2L V8—but it goes for 510 horsepower now, compared to 481 hp on the standard version running on the P31 Development Package. The same 7-speed AMG Speedshift gearbox is also inside the Black Series version. Expect a lighter overall weight for the Black Series.
There have also been reports that a Black Series variant of the C63 AMG Coupe is also coming up. Expect that to be in official news once the standard version debuts.