The 4.0L twin-turbo M177 V8 is the emotional center of every C63/C63 S thread: owners rate it above the rival F80 M4, prize its sound and sideways playfulness, and repeatedly invoke it as 'the last AMG V8' being discontinued. Enthusiasts note the engine has serious tuning headroom, with claims of 700+ hp on demand.
The M177 4.0L twin-turbo V8 and 'last of the V8s' status
Mercedes-Benz C43/C63 AMG (W205) · mechanical