Trump seems to think that tariffs are a winning issue, so I’d expect him to eventually go ahead on this one.
While imported Steel and aluminium came to about $47 billion, imported automobiles is around the $360 billion mark, so it would be quite the escalation in the ongoing trade-war.
If the EU et-al respond in kind, you could be looking at over half a million lost jobs as a result.
“Let Trump be Trump” appears to be going swimmingly . Not sure there’s anyone he’s listening to that can steer him off-course here.