Tesla's CEO Elon Musk unveiled a plan to repurpose ... functionality to rent out their car while it is not in use via an app. Musk estimates a single robotaxi can make $30,000 a year.

And according to Elon Musk, Tesla will allow third-party developers to create apps for their all-electric sedan. Of all the features of the Tesla Model S, the 17-inch touchscreen has us frothing ...