i was hoping i could set it to just spawn cars from the 50s to the late 70s if not where would be a good place to suggest this to the devs
Spawn in the cars you want to be traffic. If traffic is already on spawn the car you want under “Replace vehicle” When you are done spawning the cars you want for traffic, go to the radial menu, then AI, then traffic, then press “Start traffic” and then enjoy!
-press F11 to get into the world editor -go to Window > Gameplay > Vehicle Group Manager -create your custom traffic set and click "spawn"