Musk's 'AI Day' confronts tough questions about Tesla's technology

FILE PHOTO: The TESLA logo is seen outside a dealership in the Brooklyn borough of New York City, U.S., April 26, 2021. REUTERS/Shannon Stapleton

SAN FRANCISCO (Reuters) - At Tesla's "Autonomy Day" event in April 2019, Chief Executive Elon Musk said that by mid-2020 Tesla would have over a million self-driving vehicles where riders "could go to sleep" during a trip.

Tesla has not achieved that goal and on Thursday Musk is staging another event, called "AI Day," to promote his electric car company as the place to work for the engineers he needs to make good on his promises for autonomous vehicles.