At first glance you might think this car was the 2011 Mercedes-Benz CLS 63 AMG, and you'd be close to the mark. It's actually the 2011 Mercedes-Benz CLS with the AMG sport package, and it's nearly undisguised.
The skin-tight camouflage is placed only in a few areas, leaving the lower air dam, rear fascia and side sills almost completely undisguised. The sides and upper front fascia are covered, but most details appear to be visibile through the cladding, revealing the AMG-look on a standard CLS.
The AMG sport package is about what you'd expect: an AMG-esque visual setup that apes the car with the real grunt and suspension work, while adding painted brake calipers, AMG light alloy wheels, and unique interior details. Looked at the other way: it's as impressive as the AMG to the average uninformed observer with only a fraction of the cost or intimidation factor.
That's not to say the CLS with the AMG sport package will be a disappointment: rather on the contrary. Powered by a choice between V-6 and V-8 engines that range from sport-yet-efficient to muscle-car-torquey, the standard CLS is a proven pavement pounder. Add in the expected addition of a hybrid version based on the powertrain in the S400 BlueHybrid, and you have a trifect of solid options.