Getting cars off of the road will need some (local) government involvement. For example here in Rotterdam getting a parking permit is already subject to emission levels. Car too old? No permit for you! There also used to be an incentive where you would get a “wrecking bonus” if you let your old, more polluting, car be dismantled and buy a new more efficient one. I think that plus investment in (public/private) charging infrastructure in cities would have people switch a lot quicker.

However, concerning cities, I’d like to see a lot of emphasis on _not_ driving a car at all in the city