First Test Drive Review?
It's on Swedish though but you can still enjoy the great sound of the new C63.
The reviewer says that the AMG team bought a M3 CSL and a Audi RS4 and drove those in parallell, while developing the new C63. Just to make it better

And he also says that the car has a new feature with mid-throttle between the downshifts on the autogearbox, to make it sound nice


