> A regressive aspect is that this also means that public transportation pay more taxes, and poor people rely more on public transportation. Also, trucks pay more taxes and trucks are used to transport food, so this has an impact on food prices, affecting the poor disproportionately. Likewise diesel vehicles pay more tax, and public transportation & commercial transport usually runs on diesel (and will thus make this stuff more expensive)

In all these cases, the operating costs of the vehicles are distributed across a number of payers, quite unlike personal vehicles.