General Motors Co. and Nissan announced today the companies have signed an agreement for Nissan to produce a small cargo vehicle that GM will sell in the United States and Canada. GM will procure the vehicle from Nissan and distribute it through the Chevrolet dealer network. GM expects the Chevrolet City Express, based on the Nissan NV200, to be available for sale in the fall of 2014. "Our fleet customers have asked us for an... continue