Hopefully someone can tell me why this wont work, but what if they Chinese mfg did a Tesla and sold cars online and then shipped them over as "Sold" vehicles. I would do something like this out of spite, but if there are thousands of orders the cost of shipping can greatly be reduced over one or two "special orders" from China.
There are so many ways american regulatory committees could call foul on this that it just isn't worth it.
It just wouldn't be worth trouble and risk of delaying further the export of Chinese EVS.
New Chinese electric vehicles exceeding international safety standards are already less than half as expensive as new American electric vehicles anyway, so even with a 100% tariff on top and whatever other taxes and fees, they'll still be cheaper than new American EVS.