Unless you're trying to make your own EV factory and compete globally on price, the fact that it's subsidized is irrelevant (unfortunately), because the way subsidies work, the China subsidized price is how much an EV like that costs.
> Unless you're trying to make your own EV factory
Lots of countries manufacture their own cars, unlike some random plastic toys.
Also, You don't get this price when China are exporting them if that's what you're trying to say.
The price is mainly subsidized on the (Chinese) customer's side (there are big incentives to buy EV over gas car, and it's not limited to the price of the vehicle itself: in some places it costs more money to get a plate for gas car than the car itself), not the manufacturing side (obviously it's both, but why it got as low as $4000 is mainly because of the former).