Im all for electric cars but one thing needs to be addressed. There is not enough electricity to charge the cars.
My idea is to have a "charging" doc that you can buy with the car that is basically a solar powered generator with a plug that you plug into your car. For the extra couple grand for the charging dock you would have a car that is 100% free to charge.
But governments can not tax as much as they can tax gas (40 cents to $1 a gallon or whatever your state has it at)