BYD's technological development program, in particular lithium-iron-phosphate batteries, is undeniably impressive. Tesla is now also moving to Li-FePO4 batteries:

https://www.manlybatteries.com/info/why-byd-insists-on-using...

https://www.reuters.com/business/autos-transportation/china-...

https://www.cnbc.com/2024/01/05/how-byd-grew-from-a-phone-ba...