They won't happen. If you believe this, you're a hype-drone retard
No, there are no self-driving cars on the market today. No, nobody is actually going to make one. They are Jetsons tech: nice to dream about, will not exist in our lifetime
Stop worry about them and chill. Also, Tesla and SpaceX will go out of business by 2019.
Ride on!
http://www.dailyimpact.net/2017/08/03/the-self-driving-car-is-only-an-oxymoron/