We will never consumer our way of of a problem capitalism created.
And public transit is nearly always a better solution to spending on car infrastructure.
... but...
If you're gonna buy a new car anyway, they have the potential to cause less climate impact (although they're still environmentally devastating in other ways). As power generation becomes cleaner, so too do the cars. ICE cars are already about as environmentally friendly as they're gonna get, but EVs still have a lot of potential improvement (both in emissions and in things like material mining).
Although the tire microplastics is gonna get worse.