BYD, the world’s largest electric-vehicle (EV) maker, sold more cars overseas than at home for the first time in February, reflecting a broader trend among Chinese EV makers’ global push as domestic sales soften amid fierce competition.“Squeezed by the fierce competition at home, China’s EV makers are shifting their focus to global markets,” said David Zhang, general secretary of the Shanghai-based International Intelligent Vehicle Engineering Association.BYD, which overtook Tesla last year as...