[lmm]

> I am confused on why some people don't get that SUV's are a preference because they do bring some benefits (namely more space, a bit higher guard (especially useful on shitty roads)

That's the reason why it's a tax or fee rather than a ban. If the benefits are worth it to you, fine, but you should pay for the social costs of your choices (which are not just high pollution but also taking up more road space and endangering other road users, especially cyclists and pedestrians).

> is it better to tax people based on the car size ? Won't this just make some people have 2 cars now instead of 1 ?

Seems pretty implausible. What would be the mechanism for that?