And their software integrated into their cars is much better and receives OTAs (as a Rivian owner). However also as a Rivian owner: I’d prefer car play/AA.

This is a common misconception. While a pardon does mean some things (like removing your ability to plead the 5th in relation to the related case), it remains very disputed whether it constitutes an admission of guilt:

https://en.wikipedia.org/wiki/Burdick_v._United_States#:~:text=Although the Supreme Court’s opinion,by the recipient is disputed.