2021 data from
IIHS:
"The death rate per 100 million miles traveled ranged from 0.71 in Massachusetts to 2.08 in South Carolina"
So we know Tesla has well over 300 million miles of v12 driving, and there have been zero fatalities. (We'd know if there were).
So FSD v12 supervised has saved anywhere from 2 - 7 lives. (I know sample rate is still relatively small for this statistic to draw conclusions, but it's encouraging).
I agree with Elon. Tesla can easily prove x interventions or y accidents or z fatalities per N miles or driving. Given a larger sample size of many billions of miles, once we reach zero disengagements it won't take long for them to convince regulators that FSD is many times safer than a human. At that point I expect regulatory approval would come swiftly.