There doesn't appear to be enough oxygen in the air in those screens. I couldn't breathe there which probably explains the lack of people and the sterility issue. How that car got there is a mystery, though. Given there isn't enough asphalt or concrete or whatever building material those virtual construction workers used in that road/sidewalk texture, I can't explain how the car got there. This is even more of a enigma given these workers wouldn't have air to breath. The lack of oxygen might have happened because of the lack of foliage beforehand.
Remember: More oxygen or we can't breathe.....if we can breathe, that dirt and "life" will appear. And more concrete look or that car won't be able to drive on the road right when people start appearing. Or is this the super secret 3DGS "I Am Legend" movie game I've been hearing so much about? Where's Will Smith? And, what kind of combat system will there be with the vampire?
EDIT: Yes, that was a sarcastic post aimed at the seemingly negative reaction to this magnificent yet lifeless piece of art.

Just so some of you will know, there doesn't have to be trash or graffiti and things of that sort. There are actually towns that are clean and look exactly like this. They keep their area free of what you'd find in a larger city. So, for someone like me, this looks like home.