And yet, owning and driving a car (especially at the extremely cheap gas prices in the US) is still vastly less expensive than it would be if all the externalit

And yet, owning and driving a car (especially at the extremely cheap gas prices in the US) is still vastly less expensive than it would be if all the externalities were adequately accounted for. Society is subsidizing car ownership at high levels, and if it doesn’t feel like it – well, that just goes to show how unsustainable personal automobiles are! (Also, your calculation doesn’t include depreciation, which people don’t often think of as a cost, but economically it absolutely is.)