This isn't surprising in any way, American "cars" (quotes because the vast majority of what American manufacturers pump out isn't cars, it's trucks) haven't been competitive in decades. The only globally competitive vehicles were developed in Europe by GM Europe (Opel, since sold to PSA now Stellantis) or Ford Europe (which axed all models bar the Puma). The rest is too big, expensive and inefficient from the vast majority of uses. Tariffs and good marketing keep American car manufacturers in business in the US, but those don't work in most other markets.

The more appropriate comparison is with European automakers such as VW Group, Stellantis (Peugeot, Citroën, DS, Fiat, Chrysler, Dodge, Ram), Renault. And there too BYD is winning as well in mosy countries, but at least there's a comparison possible.