Chinese electric vehicle (EV) makers from Xpeng to Chery Automobile, leveraging their technological and manufacturing strength, are intensifying efforts to build humanoid robots as they position themselves as potential game-changers amid Beijing’s ambitions to gain an upper hand over the US in the hi-tech sector.Guangzhou-based Xpeng said it envisioned sales of 1 million units by 2030 after its next-generation humanoid robot Iron won praise from Tesla CEO Elon Musk early this month.He...