If I was BMW, I'd have sent my guys to talk to their guys and see how had the best X, Y and Z.
I would be amazed if BMW went for badge engineering.
If you are wondering why BMW wants EVs made in China, bear in mind that china is over half of the world's EV market.
The Chinese can build high quality stuff, if you want them to. They also have a decent amount of very clever people. Apple managed to make good quality stuff there whilst treating their workers horribly. I don't many people calling for an Apple boycott.
Yes worker conditions and other human rights stuff are sometimes awful, but that is also true in some western countries. Some workers get treated very well.
I'm going to wait and see what they are like. Maybe I'll want one, maybe I won't.