BYD Auto Co., Ltd. ("Build Your Dreams") is the automotive subsidiary of the Chinese multinational BYD Co Ltd,[2] headquartered in Xi'an, Shaanxi Province.
[3] It was founded in January 2003, following BYD Company's acquisition of Qinchuan Automobile Company in 2002.[4] The company produces cars, buses, trucks, electric bicycles, forklifts and rechargeable batteries. 
The current model range of automobiles includes electric vehicles, plug-in hybrid vehicles and petrol engine vehicles. 
The Denza brand, a joint venture with Daimler AG, produces luxury electric cars. As of 2021, BYD Auto is the world's second largest NEV carmaker in the world, with 329,408 units sold in January-September 2021