The gotcha with gasoline is that we are far more addicted to it as a society than we ever were to cigarettes, and increases in fuel prices reduce GDP (in the short term, at least). Which means this tactic is politically difficult, and unlikely to survive an economic downturn.

FWIW, I think that the ban is a pipe dream. Come 2030, they will push it back to 2045. I honestly think the best approach is to limit the number of roads that are built. No more adding lanes to 12-16 lane highways that seem to be gridlocked from 6am until midnight anyway. Instead, force people to seek out alternatives to driving because more cars literally can't fit on the road.