Every car in traffic is about twelve years old and that is a deliberate choice
Went through the street scenes counting what people are actually driving. Almost nothing is new. Sedans with a decade on them, pickups with rust, hatchbacks that have been repainted once.
GTA V's traffic skewed new and expensive because the fantasy was aspirational. The traffic here looks like the traffic in a real city where most people are driving something they bought used.
It has a mechanical consequence too. If the ambient cars are worthless then the app that tells you what a car is worth has something to say, and stealing a good one actually means something.