> You can also tax based on engine volume, in order to penalize gas-powered vehicles more and still penalize curb weight indirectly. It's basically what many c

> You can also tax based on engine volume, in order to penalize gas-powered vehicles more and still penalize curb weight indirectly. It's basically what many countries in the EU do. France leading the charge (buying for example a Ferrari with a shitload of horsepower will be accompanied with a one-time tax of $40 000 USD (well, EUR) you have to pay to the state) and, no, people paying 200 K EUR for a brand new car are not happy about paying 240 K EUR so the tax "works". It's also why the "downsizing" of ICE is happening: much smaller engines, but with turbos. And they do consume less fuel. Of course now that all the EU countries pushed like crazy for sales of hybrid and EVs, they're now coming up with new legislation in the work that is going to take weight into account (because EV batteries tend to be heavy and they have to find a way to tax EVs). I mean: those in the EU who bought an EV are kinda getting ripped of... The price of electricity is through the roof (in some cities like Brussels it simply doubled YOY) and they'll now be facing soon a tax on weight (it's going to be a EU directive so all the countries will have to adapt). What a way to thank people for not buying gas guzzlers!