A third rail?
So you can only drive a few miles from the nearest "official" road? That isn't going to work well in much of the US. What happens during a power outage, everyone gets out and pushes? What happens during heavy rain when water will short circuit it? Nevermind the hazards to human and animal life from electrocution.
This has to be the stupidest idea I've seen posted on El Reg in some time.