Spyshots: 2014 Mercedes C63 AMG with 5.5L Twin-Turbo
The biggest change is that the next C63 AMG will swap the current 6.3-liter naturally aspirated V8 for a new twin-turbo 5.5-liter V8, like the one used by basically the whole AMG family.
The M157 displaces exactly 5461cc with a bore of 98 mm and stroke of 90.5 mm. There are currently four states of output for this engine. In the E63 AMG and CLS63 AMG, this means 525 hp in base configuration, which is what the C63 AMG will likely make now.
Right now, this test vehicle is only a prototype for the 2014 C63 AMG, but you can still tell it’s got wider bumpers and wheelarches plus AMG-specific rims. Compared to the regular C-Class, it will have bigger air intakes.
As the model gets nearer to its debut, it should drop more of its camouflage to reveal a sleek new super sports sedan.
❐ Check out the 2014 Mercedes C63 AMG photo gallery