Solar Car

Why are we burinng gas? Aren't we emptying earth's gasoline tank? Probably we should tap the unlimited ray of sun. or moon or even stars? why don't anyone bring this? If we can drive giant satelitte, obviously we can drive tiny car.
Just today Toyota Motor is in news. They have started producing solar panels. Though it is limited to their own manufacturing plant, expert says these pannel may be used for future solar vehicle. Today report of Toyota developing solar powered green car is all over the place. Toyota has already begun using solar panels at its Tsutsumi plant in central Japan to produce some of its own electricity.
The solar panels on the roofs add up in size to the equivalent of 60 tennis courts and produce enough electricity to power 500 homes, according to Toyota. That reduces 740 tons a year of carbon dioxide emissions and is equal to using 1,500 barrels of crude oil.
Conclusion: Toyota is also likely to indirectly gain expertise in solar energy.
And probably GM,Ford,Chevy,Honda are secretly doing reseach too, who knows!