I think they did this a couple years ago, investigating the futures market traders. The price came down, for a little while.

Best news yet, you people that buy electric cars and more fuel vehicles, there is hope. While you are saving the environment,
you are costing the government tax dollars. So, now you we be charged per mile as opposed to gallons. We have to make this
fair and balanced. Ooops, wrong program.

I know the mileage tax has been stated here before, but for all those who got tax credits for being fuel effecient, shame on you.

there is no greater inequality than the equal treatment of unequals. ... —Aristotle