Decent analysis:
https://threadreaderapp.com/thread/1804530313957106091.html
TLDR about $2000 per vehicle in 2024, trending to $0 per vehicle in next 5 years. Meanwhile PRC selling cars abroad for 2x+ domestic (i.e. 10-20k over), aka manifestly not dumping prices. BYD (and a few other PRC NEV makers) are successful because they used subsidies the way it should be used - to commoditize manufacturing to ModelT levels (500usd per unit vs when competition was 2000usd).