Subaru's latest concept car is named the G4e, which stands for "green for the earth". The car has zero-emissions as it is powered by a compact electric motor which manages 65kW.
The lithium-ion battery used in the G4e makes do with vanadium, which according to the Japanese manufacturer makes it possible to significantly increase range by increasing energy density.
You can always just plug the thing in using the front bumper plug. This allows for a quick charge at home or for fast charging on the road.