This year’s Auto China, the world’s largest car show, is likely to mark a watershed for Chinese electric vehicle (EV) makers as they push dozens of new premium models into the spotlight, challenging European manufacturers such as BMW and Mercedes-Benz. Leading EV makers in mainland China, from BYD and Geely to Leapmotor and Nio, will showcase their latest models at the 10-day show, which starts in Beijing on Friday, having moved up the value chain through the rapid adoption of technological...