It's called the Mercedes C63 AMG ‘Edition 507', the latter part denoting this car's particular power output. That's 507ps, so around 500bhp. A good, solid, 500bhp. And 43bhp more than the ‘regular' C63's 457, if you can ever call that car normal. It replaces the old ‘Performance Pack' spec C63, and before that the DR520, sitting just underneath the Black Series in the power hierarchy.