I don't know the rules in every country, but to get the exemptions it's generally required that the vehicle isn't used much — driving only to shows or museums f

I don't know the rules in every country, but to get the exemptions it's generally required that the vehicle isn't used much — driving only to shows or museums for the biggest discount, or limited to a fairly low annual mileage. That will continue to be the case for old cheap and expensive cars, and we justify it to preserve industrial history. There's no reason to introduce a similar exemption for certain new cars.