> The emphasis many countries take is to focus on car owners and drivers by taxing private commuters to death, with dubious environmental gains outside of increasing state income.

There was a study that came out a while ago that showed the majority of pollution in Los Angeles came from commercial trucks, likely involved in shipping and delivery. I think I also read that those trucks and the type involved in construction have extremely loose pollution controls and requirements. Many of them might be exempt or grandfathered in to current regulations.