Ridiculous idea! We now have a tax per gallon, so the more you drive, the more you pay for gas. Cars that are more fuel efficient pay less tax as they use less gas. All this to push people towards more efficient vehicles, like electric vehicles. If they charge per mile, people will demand that the gas tax be eliminated. It just doesn’t make sense. A better idea would be eliminate gas tax and mileage tax and have people pay their road use thru tolls, the more you drive, the more tolls you pay. This equalizes the cost for everyone and people won’t complain about electric cars not paying for road use. Think!