The assumption in that approach is that all vehicles are equal, and that mileage is directly linked to pollution.
Dieselgate showed that emissions and economy are not directly related. Taxing fuel solely means that you could inadvertently encourage the use of more polluting vehicles and have no leverage to change that.
(
wheresthefish Partly filled with wrong, Fri 17 Nov 2017, 10:03,
Reply)
I already get stung with fuel duty, VAT on fuel, insurance premium tax, and have to pay for parking...
It would make more sense to tax people rather than vehicles. After all, you can only drive one vehicle at a time.
TL:DR - stop taxing me!
(, Fri 17 Nov 2017, 12:58, Reply)