There are very few cars there—I’m not sure what to compare it to; even in the USSR in the 1960s, there were more. Almost all of the vehicles are state-owned. Check YouTube—you’ll see for yourself just how many cars are on the streets.
As for the free apartments, I was referring to the upscale residential complexes in major cities and the like. I saw a video about them online. Incidentally, you don't actually need to know Korean to communicate there, as almost everyone can get by in Russian. One young woman, in fact—speaking in Russian—specifically mentioned that those are "Party buildings." They are the most beautiful and modern structures in the city.
As for China, here is a look at a Chinese village—and not even one of the worst ones:
(I have nothing against it; I'm just showing.)