Every time I hear about the amazingly low accident rates in current generation self-driving cars I'm reminded of this joke (unfortunately I can't remember the source): Grandpa, what did you do before self-driving cars? Well, we just drove them ourselves. We just needed a little practice and to take a test. Wow, and nobody got killed!? Oh, no, millions of people died.
This will only be the case when all cars are self-driving. Many of these articles do not give a comparison...so,11 per 1.7m miles sounds awesome, but how do you know what the current rate is? The data I found had a passenger vehicle fatal crash per 100m miles as between 1.0 and 1.33, and a property damage only crash rate per 100m miles of 145, which relate to 0.01 fatalities per 1m miles, and 1.45 property only crash…
Granted, taking those 1.45 and 55% figures, we might compare the 11 accidents to approximately 3.2 accident (reported and unreported) per million miles in passenger vehicles. Emphasis on "approximately".