Elon Musk demonstrates Tesla’s Grok AI, capable of human-like voice navigation. Drivers can now plan multi-stop routes, find Superchargers, local shops, and more — all hands-free.

Tesla is turning its in-cabin camera into a traffic hack, using it to count how many people are in the car and then steer navigation toward high-occupancy vehicle lanes when the headcount qualifies.

Auto safety regulators are investigating Tesla Inc. over incidents in which its vehicles drove through red lights and violated other traffic laws while using the company’s partial-automation software.