Fully autonomous Teslas are getting closer to reality. Yesterday, the electric carmaker announced that all new vehicles will come with extra hardware to support "full self-driving capabilities," and this morning, the company posted a video showing exactly what that hardware can do.

The self-driving software is not finished and has yet to be approved by regulators, but the four-minute clip is nonetheless impressive, showing a Tesla leaving a garage, driving across town, and finding its own parking spot — all autonomously. There is someone sat in the driver's seat, as per current legal requirements, but they never touch the wheel. Tesla CEO Elon Musk, who posted the clip to Twitter, notes that the car is even smart enough to driver past a disabled parking spot, knowing it's not allowed to park there. He also highlighted the car's summon function:

When you want your car to return, tap Summon on your phone. It will eventually find you even if you are on the other side of the country — Elon Musk (@elonmusk) October 20, 2016

All of this technology is a long way from being implemented, but it does raise some interesting questions. Like, what happens if you summon a Tesla on your phone then get on a train — will the car follow you round indefinitely, or will it only drive to the initial summon location? And when is someone going to mod this function so owners can whistle to call their Tesla, like summoning a horse in a video game? It's all to come.