Well seems like all car companies are somewhat subsidized/supported. I don't know how difficult to detangle the presumably many different levels of that are, especially internationally.
But if the EU were to subsidize "just" 500$ per car sold, and China 50.000$ per car, it would be impossible for european car makers to compete on an otherwise equal field.
Now I have no Idea how supported which markets are, and I'd presume I grossly exaggerated the difference, and it may well be the other way around. I have not found detailed analysis of this though.
Is there any hint of a reason why Putin would ever be scared of Taurus missiles?
from a glance, they look very equivalent to the british storm shadows Ukraine already gets.
Not that Germany shouldn't supply, it just seems that this ultimatum is a purely political idea about the upcoming german elections.