Currently I think we just put a import tarrif of something like 300% on the cars to the point its not worth buying.
I think the concern now is that our cars are so shit, over regulated and expenwove that even then it might be worth paying 3x the cost.
That and only our cars are allowed to spy on everyone. Cars have worse privacy than LG TV's and I imagine they they can't risk losing a potential source of spyware to the Chinese.