Tesla reports the accidents per million miles each quarter: So using the 'none' as the background, accident rate, I subtracted it out to see how progress is working: I've had ~4 firmware updates and with each one, Autopilot has gotten smoother, more predictable, and fun. For example, the first release would hug the lane line on a right curve, uncomfortably close. Today, it stays in the middle as expected. Not perfect but getting better with each release. Bob Wilson
