BYD Auto is a Chinese automobile manufacturer.
BYD Auto Co. , Ltd. is a Chinese automobile manufacturer based in Xi'an , Shaanxi Province , and a wholly owned subsidiary of BYD Company . It also has a 50:50 joint venture with Daimler AG , Shenzhen BYD Daimler New Technology Co. , Ltd. , which develops and manufactures luxury electric cars sold under the Denza brand . In 2015 , BYD Auto was the best selling global electric vehicle brand , ahead of General Motors and Nissan .