The boys at just put up this video of a new Mercedes C 63 AMG, caught on video during hot-weather testing. The Merc will be a screamer, though you'd never know it from this mild-mannered coupe clad in leather Zorro maskage. No audible burble from the new V8, either, I'm afraid.

Coupe d'Gracious: Mercedes-Benz CL 63 AMG [internal]