With a supposed price tag of just $299 and even a free X (formerly Twitter) subscription, the myth of the Tesla phone has captured the imagination of tech enthusiasts worldwide. But is it real?

"Tesla brakes fail!" Zhang clambered on top of a shiny red display model and started hollering, too. "Things escalated," said Zhang. The moment — captured on cell phone videos shot by onlookers ...

The driver of the Tesla admitted that he had engaged the "self-drive" system and was using his cell phone. Have Tesla Drivers Been Misled about Self-Driving? But the argument that driver behavior ...