Chinese aviation start-up AutoFlight, backed by electric vehicle (EV) battery giant Contemporary Amperex Technology (CATL), is emblematic of mainland China’s ambitions in the flying car market, part of the country’s broader push to dominate the low-altitude economy. The Shanghai-based company on Thursday unveiled Matrix, a five-tonne (11,000lbs) class electric vertical take-off and landing (eVTOL) aircraft, which it described as the largest of its kind in the world after completing a flight...