The top next generation eco cars from Detroit 2013

Electric cars are nothing new and for most of us would prove wholly impractical – but use electricity to supplement existing forms of propulsion, or find a way to produce it on the move, and all of a sudden electric vehicles seem a whole lot more attractive.

Manufacturers around the world are furtively working to crack this tough nut: here are 10 of the best next-gen eco vehicles to make it from the 2013 Detroit Motor Show.