Dieter Zetsche (R), CEO of German car manufacturer Daimler AG shakes hands with Carlos Ghosn (L), chief executive officer of Renault-Nissan Alliance, sign an agreement in Brussels April 7, 2010. Carmakers Renault SA , Nissan Motor Co and Daimler AG announced on Wednesday a strategic cooperation that includes a one-time exchange of minor stakes in each other. [Agencies]