The tech billionaire tweeted a picture of a Model 3 Tesla driving by as its speakers play a brief audio clip that says "Well don't just stand there staring, hop in." The clip hints at Musk's plan to turn all Teslas into a giant fleet of autonomous taxis.
https://www.notebookcheck.net/Elon-Musk-claims-that-Teslas-will-soon-be-able-to-talk-to-people-nearby.450138.0.html