Polestar Making A Smartphone is Pure Genius! Here’s Why? 

Polestar brand is a great candidate for this type of thing. It also makes a certain kind of sense for the Chinese domestic market. If Xiaomis automotive ambitions survive the first car, we could see this become a thing. Electric vehicles also lend themselves well to Ecosystem building. Imagine having a highly integrated phone that gives you seamless app free access to your vehicle or a contiguous UI between your phone and car that lets you remotely access controls and features. Personally, I think the potential data harvesting would turn me off to it, but I know there are fans out there who wouldn't mind it if it meant having another polestar product in their hands

Yes that is why Google is banned in china so android auto doesn't make sense