One thing I don't like about hybrids in general is they really only move the pollution away from the vehicle. For an electric car, there are batteries and the electric has to be produced. For this, the nitrogen had to be compressed. Converting any energy from one form to another has losses, but confessing air is far more inefficient than converting electric.
I'd love to so the total carbon footprint of 100 miles compared between a normal gasoline engine car, an electric hybrid, and this air thing... I bet once everything is accounted for, there isn't as much a difference as the tree huggers think. (Likely goes the other way)
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