> So unless some of that tax is intended to be a carbon tax and works to incentive cleaner alternatives, then this is a pretty weak argument.

Of course the incentive is towards cleaner alternatives, in my country is public transport (trains, trams and subway are electric here).

> Also, the producers aren't paying he cost

fiscal incentive for EV go straight to car producers pockets, I don't see the difference

taxing owners is a way to drive them to buy a different product, cheaper for the buyer and more profitable for the seller

it works both ways