Considering their weight they will cause far more road wear than ICE cars. Maybe tax them at three or four times the usual rate.
That might be a bit excessive. LOL Our EV crossover weighs about 10% more than the ICE crossover it replaced, and less that our ICE pickup. I don't know what the weight comparisons are for other people's EV's. I just know the math I did when it was time to replace my wife's old ICE crossover with another one, and I was deciding if it'd be worth it to get an EV. Part of the figuring was how much more frequently I'd have to replace the tires if it's an EV (because of weight gain).
With that extra tire cost and other costs and savings for EV's, and in Alabama with gasoline hovering between $2.70 to $3/gallon this past year, while power costs 16ยข/kWh (after the power company adds their fuel rate rider and the 4% state tax), IMHO the threshold is about 12K or 14K miles driven per year for it to be worth getting an EV instead of an ICE car. We drove ours 26K miles in 2023, 16K of those miles charged at home. Thus an EV is great for our situation, particularly with also having an ICE pickup in case we decide to go on a road trip that has few charging options. (For us the threshold is really about 8K miles per year, but that's because we have lots of home solar giving us 83% of our power for free, including charging the EV. But since most people don't have that it's probably best to go with the 12K miles per year as the threshold.)
If we go back to Trump era energy prices (using year 2019 as the basis, because I hate using 2020 as the basis with covid artificially suppressing gasoline demand and prices), then the threshold is about 16K miles per year for an EV being worth it.