Last December, the electric vehicle company NIO hosted its annual celebration for customers in Shenzhen, one of China’s entrepreneurial hotbeds. The event, called “NIO Day,” mixes an Apple-style keynote address with the lighting and theatrics of a stadium concert. Among the evening’s highlights was a musical skit by the Blue Sky Chorus, a troupe of volunteer performers who are all NIO customers. In original lyrics they composed, the group catalogued their heartaches through the company’s tumultuous journey — “old classmates snickered, the whole neighborhood gossiped” — then broke into a rap sequence where they fired back. The second verse described the joys of driving a NIO car and their commitment to the company’s success. They sang: “The NIO life is worth loving with all your spirit. If I can choose again, I would still choose NIO.” Sitting in the front row, watching intently, was William Li, the 45-year-old founder and chief executive of NIO. In comp