The Silicon Valley fledgling and the Detroit titan aren't exactly an even match in size and output — yet this week investors pushed Tesla past Ford, even if only for the moment.
Speculation about Musk's new company, Neuralink, centers on the name and how it might correspond to his previous statements about incorporating artificial intelligence into human brains.
It would be the first time humans have traveled beyond low Earth orbit since the days of Apollo. The mission would be manned and financed by two private, anonymous customers.
SpaceX scrubbed a launch attempt Saturday at NASA's Launch Complex 39A, site of the shuttle program and the mission that first sent humans to the moon. Their second try succeeded Sunday.
The company posted a profit of nearly $22 million for the third quarter, the first quarterly profit since 2013. Tesla attributes the good results in part to new stores.
Elon Musk, Tesla's CEO, says once the technology is fully enabled, the cars will be able to drive with no human input. Musk says previously built Teslas can't be retrofitted with the latest features.
In a speech at the International Astronautical Congress in Guadalajara, Mexico, the billionaire tech entrepreneur is detailing his vision for sending humans to the red planet.
The Federal Trade Commission signed off on Tesla's plan to buy the solar panel installer. CEO Elon Musk is SolarCity's chairman and its largest shareholder.