In the woods on the outskirts of Beijing, Wang Chao, the ambitious founder of Chinese startup Kaiyun Motors, is behind the wheel of a tiny electric-powered truck he helped design, zipping up and down bumpy terrain with a big smile on his face. The vehicle, he says, “will be as, if not more, successful” than Ford Motor Corp.’s legendary F-150 pickup. But unlike the gas guzzler, the diminutive Pickman runs on electricity. Wang’s little-known company has…