I know this detail might sound silly, compared to all those grandiose "sex and culture" discussions but the cars are the non-realistic detail that struck me.
While I can imagine a car having somehow its glasses still intact after that much time, I just cannot understand how, after so long:
- cars tires don't wear, their materials didn't degrade over time and turn into dust, which is what tires do after some years / a decade.
- cars electric wires plastic didn't degrade, letting cars still function. In real life, we actually had a batch of 1995+ Mercedes (not a cheap car!) suffering from massive electric wires degradation into dust. For some reason Mercedes made their wires plastic biodegradable and so, after about a decade, a lot of those cars stopped working. Now, imagine cars staying in such harsh climate, atmospheric conditions etc. for decades, yet their electric systems still work well enough to keep them trucking.
- the big one: car batteries just won't last more than 5-10 years. So, how does a kind of "middle age" civilization manage to manufacture new batteries?
I know the above might sound pedantic, but every time I see an "apocalypse" movie / game, they feature ancient cars that somehow still work... and it's just impossible and it breaks immersion.