China’s electric vehicle (EV) makers have had a lot to contend with over the past week: slumping shares for market leader BYD, cooling sales and margins and a warning from authorities in Beijing amid a punishing price war. BYD’s Hong Kong-listed shares lost as much as 17 per cent of their market value, or HK$122.3 billion (US$15.6 billion), on Monday after falling to HK$378.20 from an all-time high of HK$477.80 on May 23. The company’s shares recovered 4 per cent on Tuesday. Analysts attributed...