The adjustability of a 4 link is both good and bad....You've got to really stay on top of the adjustments as track, traction, and weather conditions change... Good deal if you're running a Pro class and want the absolute max every round.... However a ladder bar is not near as sensitive to changing conditions and therefore way more consistent.... Length of your car has nothing to do with which will be better. For your car, I would go with the ladder bar set up. Consistency is going to be far more important then putting down the fast et every time....