Cars that are solar powered basically run on energy form the sun’s ray’s and that there is an unlimited supply of the source of energy. This gives solar powered vehicles an edge over those that use up the limited supplies of oil reserves. Another advantage of solar energy is that it also is free of future cost. Also requires little maintenance. The united states is facing to problems.they are running out of fuel and the exhaust from the vehicles is making the ozone layer disappear.The american citizen are going to have to find a way to preserve fuel and at the same time,save time, save the ozone layer,and also, save money.