If you create a tax that disproportionately hits poor drivers, you can balance that out with redistributive taxes - and incentives for buying electric cars that mainly benefit poor people.

Currently most incentives for buying electric cars benefit the wealthy. For example in the UK, I can get 45% of my tax back through salary sacrifice on an electric car, whereas a person on basic rate only gets 20%. It should arguably be the other way around i.e. a "super deduction" for the poor, capped at basic rate relief for the rich.