3 is best for physics and multiplayer. They fix that if u bump someone from the rear it doubles their speed, the weight transfer of contact is wayyyy better. If I am heavy on the brakes before u bump me mid turn, and you brake too, its not gonna be a big deal. Pretty real.

3 def best by far, but the server configs/lack of user control for public servers is horrible. Worst public game servers ever.

 

With your junk. Duh!