This is another interesting concept. Unfortunately, I have a problem with the whole concept of electric cars – at least with ones with batteries which need to be charged from the electric power grid. In terms of a solution to our energy problems, or to global warming, these really make no sense whatsoever. All they are doing is moving the problem from one place (vehicles) to another place (the power grid), where the environmental impact is potentially as bad or worse. If even a small percentage of our vehicles were switched to electric, the impact on the power grid would be enormous.
While I admire the idea behind this effort, I believe the environmental advantages are largely illusory.