I don't think anyone else has mentioned this, but in the last shot of Niko walking through the streets, something distinct appeared after multiple viewings. There's a car, looks like another Stallion Classique, which is being driven by a pedestrian. Now, that's not peculiar, but his blinker light is. It's not a brake light because the car is in perfect condition, and only the left blinker is red. Is this a sign that we will be able to assign blinkers now to be told what direction the traffic will be going in if they turn, which in turn means less damage to your vehicles because the npc's are stupid and random?
Wiseman say, forgiveness is divine, but never pay full price for late pizza.