This is the only solar car I can almost believe in. Put solar cells on your roof than hook them up to a plug in hybrid car. The price of electricity from solar power is a couple times as high as the price of electricity from the grid. However the price of energy in the form of gasoline is about ten times the cost of electricity. So it is cheaper to put solar cells on your roof and run the first few miles of every trip on electricity than it is to run the car off gasoline for those miles.
Or it would be if the Volt and plug in Prius were not so much more expensive than any similar gasoline powered car. Still, this is cheap enough to actually be a reasonable thing for an upper middle class family of eccentric early adopters to actually do.
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