If, by L5 you mean, I can get in my car, at a random, drivable over legal roads location, and instruct the vehicle to take me to another (within reasonable dist

If, by L5 you mean, I can get in my car, at a random, drivable over legal roads location, and instruct the vehicle to take me to another (within reasonable distance) location that is drivable over legal roads - I.E. Google Maps has a route. Basically, no steering wheel required. Benedict Evans, at A16Z, says that some of the smartest people in the automated driving field say that L5 autonomy is 15-20 years out at the earliest. Let's just say that Elon Musk has been known to be a little "enthusiastic" when setting goals and objectives for his team.