General Motors unveiled a new electric concept car in China, aiming to bolster its image as a supplier of non-polluting cars tailored to the crowded mega-cities of the future.  GM showcased the EN-V, short for “Electric Networked-Vehicle,” in China with its joint venture partner, SAIC Motor Corp.  It will be shown during the World Expo to be held in Shanghai from May through October.

The two-seater EN-V, which would communicate with other cars to help avoid accidents and ease traffic in congested major cities like Shanghai, is only at the conceptual stage — it would not hit showrooms for another 10 to 20 years, and would require regulatory changes for it to be allowed on roads.