Elon Musk's robotaxis may soon hit local streets as his company seeks to expand its driverless ridesharing service and catch up with rival Waymo.

Elon Musk's Tesla has applied to test and eventually deploy its Robotaxi vehicles in Phoenix, Arizona, following in the footsteps of market leader Waymo.

Alphabet's Waymo robotaxis have driven more than 100 million miles without a human behind the wheel, doubling the mileage in about six months, a top company official said, as it speeds up deployment in U.