Professor Thomas Weber (L), of Mercedes-Benz Group Research and car development, Chairman of Daimler AG and Head of Mercedes-Benz cars Dieter Zetsche (C) and Ola Kallenius, board member of cars marketing and sales for Mercedes-Benz, stand next to the new C Class Concept Coupe during the press preview day of the North American International Auto Show in Detroit, Michigan, US, January 13, 2014. [Photo/Agenices]