Elon Musk has handed over some of the key responsibilities at Tesla to Tom Zhu, the company’s head of China, including direct oversight of the carmaker’s US manufacturing plants and sales operations in North America and Europe, according to a report by Reuters on Tuesday. The move makes Zhu a potential successor to Elon Musk as chief executive of Tesla, though Musk still manages Tesla’s vehicle design and development, and Joe Ward, the company’s head of Europe, takes direct charge of its Berlin Gigafactory. Tesla’s shares dipped 14% on Tuesday, its biggest-ever drop since September 2020, after the company reported lower-than-expected delivery numbers for the fourth quarter of 2022. [Reuters]