I'm not really sure I agree the general taxation scheme is not regressive still. It varies, but at least for ACT, they waive stamp tax on new electric cars, and registration is $100 cheaper. I also didn't include GST tax for fuel in my numbers above (10% of total fuel cost).

So yes, luxury tax does kick in at a lower number (which I find silly), but I think overall, you're still creating a situation where electric is paying less to use the same roads.

That said - Agree with the line you quoted. I think an even and fair tax makes sense, but I don't see how you do that at the local level when the fuel tax is federal.