With car sales cratering worldwide, Tesla CEO Elon Musk has his work cut out, looking for other areas of growth. Apart from launching a fleet of autonomous "Cybercab" robotaxis, the billionaire has promised that an army of Optimus humanoid robots could soon be roaming factory floors,

Catching up to Waymo won't be easy because it has partnered with Uber Technologies, which operates the world's largest ride-hailing network with 170 million monthly users. It could take Tesla years to achieve that level of scale, especially if it builds its own mobility network from scratch.

Elon Musk is ramping up efforts to persuade U.S. lawmakers to pave the way for autonomous vehicles, an area of focus for Tesla as it prepares to debut its own