I believe another motivation for manufacturers is that they can turn the car’s UI into a software problem, which from a human-centered design perspective means that they can throw it in the trash and never spend a dime on it.
The design exterior looks glued together from more interesting electric cars, so no surprise the interior does too.
EDIT: I just learned that Jony Ive did the interior. Further proof that without Steve Jobs goading him, Ive is just a stylist.
[0]: https://www.thedrive.com/news/touch-controls-are-50-cheaper-...