That is why the license is really a regressive tax:  it is most affordable for those who put the most miles on it.  In reality,  the license  ( tax)  is just a way to employ more people,  take their mandatory union dues for greasing Democrat campaign skids,  and an almost guaranteed Blue State Democrat vote.  Perpetual Political Motion Machine.  All you need to do is add more money each year to keep it running.  Thus,  gains in income and taxes are never enough to maintain a government whose cost expands faster than the economy.