Tesla's vehicles are almost 10X safer than the average vehicle. Whether their autopilot system is contributing positively or negatively to that safety record is

Tesla's vehicles are almost 10X safer than the average vehicle. Whether their autopilot system is contributing positively or negatively to that safety record is unclear. The real test of this would be: of all Tesla vehicles, are the ones with autopilot enabled statistically safer or less safe than the ones without autopilot enabled?