Chinese automaker BYD sold more electric vehicles in Europe than Tesla for the first time, a setback for Elon Musk’s EV maker as it faces growing competition overseas. Tesla registered 7,165 battery-electric vehicles in Europe last month, down 49% from a year earlier, according to data from JATO Dynamics, a consumer-research group. “Although the difference between the two brands’ monthly sales totals may be small, the implications are enormous,” said Felipe Munoz, global analyst at JATO Dynamics.