I won't claim to know for certain but want to point out that if there's a SIM card in the head unit then it can upload anything it can see on the CAN bus which

I won't claim to know for certain but want to point out that if there's a SIM card in the head unit then it can upload anything it can see on the CAN bus which is literally every sensor in the vehicle. I guess the only thing likely to be missing is a cockpit video feed.