Click above to view the Fiat 500 Aria concept in hi-res

Having already had to increase production several times over, the Fiat 500 continues to win the hearts and minds of consumers around the world... tree-huggers included. But that isn't about to stop Fiat from seeking out even more buyers, especially those of environmental conscience. And so reports indicate that the Italian automaker is preparing a hybrid version of the popular retro-mini.