Not extensive Autopilot data, but basic vehicle state attributes (speed, throttle, seatbelts engaged, etc). All vehicles have this black box (event data recorder) in their airbag subsystem.

There have only been a handful of Tesla accidents while autopilot was engaged where the vehicle was catastrophically damaged, so it’s a bit of an edge case.

https://www.edmunds.com/car-technology/car-black-box-recorde...