Robotaxi operator Pony.ai has begun testing rides with human staff inside between a suburb of Beijing and a major high-speed train station.Chinese robotaxi company Pony.ai announced Friday it is working with Stellantis for testing self-driving taxis in Europe.The companies said they will start tests in the coming months in Luxembourg, where Pony.ai's European division is headquartered. Starting next year, the companies plan "a gradual rollout across European cities."Pony.ai will provide the autonomous drivi ...