Apple has quietly tripled its testing of autonomous cars, records show

Overall, autonomous car companies tested more than 9 million miles during the last reporting period on California roads last year. That's nearly 4 million more miles than 2022, according to state Department of Motor Vehicles data analyzed by The Washington Post. Nearly two-thirds of the miles driven in the 2023 reporting period -- including those from Apple -- were with so-called safety drivers, who were ready to take over whenever the technology made a mistake or needed assistance. The rest were fully autonomous with no human driver present.