so great concept car.. has a lot of potential. HOWEVER, the announcer is an idiot. The car would not cost $0.00 to fill first off. You need to pay your electric bill, unless you're a jerk and go steal someone else electricity. But the point that it would be cheaper, a LOT cheaper is very valid. The whole, air compression generator running the car's engine which in turn runs the generator is a bit of an over step too. I think it would be more hassle then its worth, and you'd end up spending most of your energy keeping it in a closed loop, cutting down on millage. Again, it is a genius idea, but the announcer needs to study high school science again.