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We don’t have all of the specs on this PP-Performance-tuned C63 AMG S, but here’s what we do know: it dyno-ed in at 650 horsepower and it spits dragon’s breath from its tailpipes when it tops out its RPMs. While spitting fire out of the backend isn’t necessarily a good thing, it’s a hell of a lot of fun to watch this luxury sports sedan do something normally reserved for high-end supercars.