BYD, or BYD Auto Co Ltd, if you want to use its full title, is a Chinese car company founded in 2003 and based in Xiu0027an, Shaanxi Province, which makes a range of electric vehicles, plug-in hybrid vehicles and petrol engine vehicles, as well as buses, trucks, electric bicycles, forklifts and rechargeable batteries. Besides the thought of dealing with his son X Æ A-12 after his first day at school, BYD is the thing most likely to make Elon Musk break into a cold sweat: it’s tipped to hit a market cap of 1.5 trillion yuan in 2022, meaning it...