Earlier quoted context omitted.
These statistics include plug-in hybrid gas cars (PHEV), of which BYD sell a lot, and Tesla do not make at all. > "The company’s (BYD) success is driven by a dual strategy of producing both fully electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs)..."
Is the EV/PHEV separation meaningful when comparing to other makers ? PHEV are mainly used on their electric capacity, on daily short trips.
BEVs and PHEVs are not the same thing, and the size of batteries used in each is radically different.
BYD have a company policy of conflating their EV/PHEV numbers (their own made up term “new energy vehicles”) as it makes their “EV” numbers look great in misleading statistics like the one you linked.
Most people are not going to compare gas car production counts to Tesla, given the entire reason Tesla exists is to not produce gas cars. BYD still make gas cars - all PHEVs have a gas engine.