Stuttgart, Jan 23, 2012 - The designers at Mercedes-Benz have picked up yet another prize for no fewer than four models in the form of the internationally renowned "iF product design award 2012". A top-class specialist jury has bestowed the award on the Mercedes-Benz M-Class, the SLK, the SLS AMG Roadster, and the Concept A-CLASS show car, as well as the smart electric mobility concept, all for their outstanding designs.