2010 New Citroen plug-in Hybrid Metropolis Concept Car

Citroen's back again with yet another concept car. And this time there isn't even a major international motor show to help debut the vehicle. Instead the Metropolis, as it's called, will be unveiled in the French Pavilion at the 2010 Shanghai World Fair.2010 Citroen Metropolis Concept Citroën has revealed the Metropolis Concept, a sleek luxury sedan concept car that pays homage to China's