I didn't see this info in anybody's response. If you do change the breaker to 60 amps I think the requirement is to have the EVSE hardwired. I think you can only use a NEMA 15-50 up to 50A breaker. That also could be a problem now if you have a plug. there could be a bad connection at the plug...
I understand that upcharge for Autonomy + is 2.5K. So the question is Rivian going to call full self driving Autonomy ++ and do another upcharge when it comes out. On the Rivian site it only says that more features are coming but that is all. It doesn't say anything about full self driving