Is Toyota BYD’s JV partner in China? I think the BYD taxi I rode in was based off a Camry body, but it seems their JV partner is GAC, so it isn’t clear how that came to be.
No, a lot of them are made with tooling and designs directly used to make the models they are based on. This is all over the table and part of the JV deal, though I think these days it doesn’t happen as much as 10 years ago.