The easiest way to ensure that would be to get rid of all gasoline-based gas stations and replace them with electric ones. So even if someone tries to sneak in a gas car, they won’t be able to refill it.
That wouldn’t work, there are zillions of existing ICE cars there already in use. They aren’t banning ICE cars that are already there, just banning importation of new ones
The easiest way to ensure that would be to get rid of all gasoline-based gas stations and replace them with electric ones. So even if someone tries to sneak in a gas car, they won’t be able to refill it.
That wouldn’t work, there are zillions of existing ICE cars there already in use. They aren’t banning ICE cars that are already there, just banning importation of new ones