The AMG version of the Mercedes C63 just hit the Nurburgring circuit for some serious testing. The high-performance German sedan is going to be powered by a 5.5-liter V8 engine producing 525 horsepower, slightly less than the E63 AMG from where...

Mercedes takes the wraps off the C63 AMG Edition 507, a special edition based on the new AMG-tuned C63 model. Scheduled to debut at Geneva, the new edition comes with an improved output and few styling tweaks. To be more specific, the stock...