The primary vehicle contributor to both global warming and pollution isn’t even cars though, it’s ships by a landslide. It isn’t even remotely close. Cruise ships and particularly the giant container ships used to move goods internationally are hugely inefficient and polluting with just one ship putting out in a single day the equivalent of multiple cars worth of pollution for an entire year.
Ocean liners are very dirty yes but they're actually very efficient compared to cars and trucks precisely because they're so massive. They move a huge amount of goods. Put the same amount of goods on trucks and you get an order of magnitude more emissions.
Oh and electricity and heating create almost twice as much ghg emissions as transportation. Which is why supporting renewables is the single most important thing anyone can do for the environment.