https://www.wired.com/story/china-conquers-mexican-automotive-market-and-the-us-is-worried/
State department hand wringing that China is going to use the US trade agreements as they were designed is 
I fully expect them to redo these with "except china" clauses.
I never looked into it... but now I'm wondering if there are POV style vehicles that you legally aren't allowed to get registered at the DMV?
Could there be a federal regulation or 50 states worth of state regulation that prohibits the import, sale, and registration of certain makes/models of vehicles?