"We're probably only a month away from having autonomous driving, at least for highways and for relatively simple roads. My guess for when we'll have full autonomy is about three years, approximately three years. However, regulators will probably not allow full autonomy for maybe... at least one to three years after that. So, it depends on the particular market -- some markets the regulators will be more forward leaning than others. But in terms of when will it be technologically possible, three years."

https://youtu.be/ktyMmzZ6WeM?t=474