How do you arrive at that conclusion? That it implies all your "personal" driving info would be made public? Seems to me its more like car companies would not be able to "hide behind trade secrets to avoid scrutiny".

Extreme silly example to make my point:

DMV: "What does your car do to avoid running people over"

Waymo: "Its a trade secret, sorry".

* New law gets passed

DMV: "Ok now tell us"

Waymo: "Ok well...it honks the horn automatically and gives the person 5 seconds to get out the way. We believe that should be sufficient for the majority of cases and if you're too stupid to move, well...natural selection ftw."

DMV: "..............really? that's crazy...it should really be more like...10 seconds."