I think you should be able to disable specific vehicles from spawning in traffic; Maybe you don't want a Pigeon or Wigeon to spawn because it's unrealistic for them to be where you're driving. Or maybe you just downloaded a mod car that you don't want to spawn. There could just be a menu you can enter from the traffic wheel, where you untick a checkmark for cars you don't want. Maybe it could even extend to specific configurations?
