Driverless and Semiautonomous Vehicles

• Bedrock, an A.I. Start-Up for Construction, Raises $270 Million - The year-old company, founded by veterans of the autonomous vehicle business Waymo, is seeking to automate excavators and other building equipment.
• Tesla Profit Slumps, but Investors May Not Care - The automaker also said it would invest $2 billion in xAI, the artificial intelligence company controlled by its C.E.O., Elon Musk, and stop making the two oldest cars in its lineup.
• China Delays Plans for Mass Production of Self-Driving Cars After Accident - After years of planning for cars that would let drivers take their hands off the wheel and eyes off the road, China’s regulators have become more cautious.
• After Power Outage, San Francisco Wonders: Can Waymo Taxis Handle a Big Earthquake? - City officials have called for a hearing investigating Waymo after the company’s self-driving taxis suffered widespread problems during a power outage.
• Waymo Suspended Service in San Francisco After Its Cars Stalled During Power Outage - The self-driving cars came to a halt at intersections when the power outage knocked out traffic signals, causing tie-ups but no accidents or injuries.