Tesla is gradually losing its appeal in China’s premium electric vehicle (EV) segment as its sales and market share fall.The US carmaker handed 57,152 Shanghai-made Model 3 and Model Y vehicles over to customers on the mainland last month, down 9.9 per cent from a year earlier, according to the China Passenger Car Association (CPCA).That meant Tesla’s losing streak has extended to six months in a row, despite its efforts to woo consumers away from rivals like Xpeng and Xiaomi with price cuts,...