Illegal to sell new in a number of jurisdictions, starting sometime in the next 10-to-never years. Would probably put us on track to 3-4 degrees of warming.

Unless it becomes illegal to sell used also then that should not be an issue when deciding what type of car to buy now.

There are plenty of levers available to government for hastening the demise of CO2-emitting vehicles. Curtailing new sales is just one of them.

I would be shocked if it ever becomes illegal to sell used.

I don't think it's actually going to be illegal to sell cars with ICEs anywhere, just cars that don't have a zero-emission run mode (so plug in hybrids will still be OK even though they'd run fine without a plug-in)