There's still a huge amount of regulation before those trucks get onto the road. Just trying to import a bag of parts and then reassembling in the US while claiming it's a kit car is the oldest trick in the book. It's an instant trip to the crusher every time.

For a while Ford was importing Turkey manufactured small vans with seats in the back as passenger vehicles, immediately un-bolting and shredding the seats after they'd arrived at the US port, and selling them for their real intended purpose (small electrical/telecom/plumbing/other trades services vans).