A mainland Chinese joint venture has launched an electric taxi in Hong Kong next month, but a lawmaker warned that the lack of quick charging stations remained the biggest challenge to the government’s target of introducing 3,000 such cabs by next year. SAIC-GM-Wuling, a joint venture between SAIC Motor, General Motors China and Guangxi Automobile Group, on Tuesday unveiled its Darion Taxi, a new six-seat e-taxi to be launched in Hong Kong. DH Legend Motors, the joint venture’s Hong Kong...