>which will make it far easier for Mercedes to prove that you’re at fault than you to do the opposite.
which implied the telemetry collected had some sort of asymmetry in the evidence (ie. it helps prove Mercedes was at fault more than it helps prove the other driver was at fault)
Yes, and what I meant is if you drive a clunker into a new Mercedes, you are very much in an asymmetric situation in terms of "What happened?". Your clunker has extraordinarily little, in comparison to the Mercedes, and the sensors it requires to make Level 3 work (and which, presumably, log everything for collision situations and to determine who is at fault).