text: Experts say that the will need roads that are embedded with electrical cables. We also thought of the idea of magnetic roads, but to have magnetic roads that make our cars work we would have to do massive upgrades to our highways. But this is too expensive, so we have to make the cars smarter rather than the roads. To do this we need tons of sensors, a rotating sensor on the roof, and a GPS reciever. All of these also costing a whole lot of money.