While the initial testing will use Tesla's own fleet of cars, regular customers may be able to add their cars to the ride-hailing fleet next year, Musk says.

Musk noted an autonomous fleet could see vehicles utilized an average of 55 hours per week, vs. the current average for vehicles to be utilized just ten hours a week on average. As a first step, Musk said Austin will see an initial launch of unsupervised FSD in Austin in June, and expects California and other states to follow.

Tesla investors submitted questions for the fourth-quarter earnings call asking CEO Elon Musk for details on the planned robotaxi rollout this year.