Why don't they

Why don't they adapt these newer solar panels to fit on cars, the hood, top, trunk, etc., and let them run the car? I know this isn't practical in all areas of the country, but where I live I wouldn't have to use gas more than once or twice a year unless they can make these solar thingies save up energy for a "rainy day". Maybe an auxillary motor that ran on something else like CNG? Seems to me that the entire car could be made of solar panels that would keep the thing going and going. Here where I live, the Victor Valley in California, we probably have 350 sunny days a year. Why can't we run it all on solar power??? Everything. Solar and Wind are our two biggest assets here, let's figure out a way to use them. Think how clean the air would be if cars ran on solar power. If you can power a swimming pool pump, gates, an entire house, there must be a motor that could be move a vehicle on solar power. Come on guys, give it a try!!!!