Electric Car Highway Recharging System

[GasSavers_maximilian]

One major problem with many electric vehicles is that their range is limited and that the large amount of batteries required is heavy and expensive. For long distance driving, however, one typically uses highways and in theory an electrical supply system could power an electric car while on the highway and at the same time recharge the batteries for the non-highway portion of the trip. If a fixed supply rail or cable is employed, it could also provide a simple way for the vehicle to be able to navigate itself.

Neat idea, but how do you get the power to the car in a way that is cost effective, doesn't pose a safety hazard, isn't effected by snow, sand, or wind, doesn't compromise the aerodynamics of the vehicles significantly, and has cheap enough installation costs to even contemplate? So far I haven't been able to solve this one. I'm skeptical.