Highways are 10x safer than non-highway miles, and AP may be selectively engaged in only the safest situations. A population study would be tricky to do, becau

Highways are 10x safer than non-highway miles, and AP may be selectively engaged in only the safest situations. A population study would be tricky to do, because all recent Teslas have Autopilot and Teslas as a whole are newer cars driven by rich people, with a heavy bias towards California. Further, Teslas have automatic emergency braking independent of Autopilot. So you can’t compare accident rates as a whole, but you could compare accident rates of, say, new Mercedes or BMWs with Teslas in California, which have roughly the same capabilities and are driven by the same rich people (though possibly slightly older).