Handcrafted and signed by its own master engine builder, the V-8 heart of the 2015 Mercedes C63 AMG 507 Edition generates best-in-class output: 507 hp and 457 lb-ft of torque. Developed entirely by AMG, it features such race-proven technology as a rigid one-piece aluminum bedplate, plasma-sprayed cylinder bores, and self-adjusting bucket-type valve follower.