Elon Musk has grown Tesla Inc. into one of the world's most recognizable brands — and not just in the automotive space. But while Tesla has been the top dog in the U.S. electric vehicle (EV) market, BYD Auto Co. Ltd., a publicly listed Chinese multinational manufacturing company, has been making noise overseas. Chinese automaker BYD — a company that Warren Buffett’s Berkshire Hathaway Inc. owns about 6% of — beat out Tesla to become the leader in global electric car sales in the fourth quarter o