Hmmm, given this post, I guess babies should be born fully grown and with a college degree ready to work. Really??? Inventions and practical uses of them cost ungodly amounts of money to produce into a consumable for everyone. I guess if you are extremely rich you could build one and just tool along BUT then all the freeloaders out there would just steal it from him because he should give to the poor everything he owns. Not to get lost in the diatribe, it takes a whole lot of trial/error to produce something reliable that can withstand the vibrations of the automotive world. Solar panels are still mostly extremely fragile, a crack would render a cell inoperative. According to how it's wired could make the whole panel junk. NASA uses solar panels on many devices going only a crawl on land. There isn't too many bumps in space. The gator doesn't jar as hard as a car going down the road at 75mph, hitting a pothole or such. Vibrations are a huge solar panel longevity problem. Newer technologies are making them more flexible and less sensitive to vibration damage, but it comes at a huge cost. Lest we forget, the panel would only generate power during daylight hours so it would be a huge added cost for a vehicle to have it included in its design. Not to mention (but I will) if a car has a large portion of its body (is there enough area available) as a solar collector, how much insurance/premium would be included especially when someone 'bumps' or otherwise damages the panels? There are many good and bad applications for solar right now, unfortunately cars aren't one of them beyond consumer experimentation subsidized by the gov or as an investment by business (in anticipation) of a big windfall. It will come, but for now I would not drop a penny into anything I drive that does not use gasoline, for the roads.