Car ownership is extremely broad across all income groups in the United States, see <a href="http:&#x2F;&#x2F;www.newgeography.com&#x2F;content&#x2F;002666-how-lower-income-citizens-commute" rel="nofollow">http:&#x2F;&#x2F;www.newgeography.com&#x2F;content&#x2F;002666-how-lower-income-...</a>. The overwhelming majority of income taxes are paid by high earners, with the the top 10% paying close to 70% of all income taxes. If roads are subsidized by income taxes in addition to gas taxes, they are being paid for in an extremely progressive way. Effectively, roads are provided for free to over half the population.<p>Or maybe I misunderstood and you are trying to make a different point?