Originally Posted by ZKindaGuy

What down force??? The closer the down-force is occuring to the C.G. point the force becomes less effective since the force is being exerted near the fulcrum point of the car (C.G.).

At the position the little wing is located at the top of the window that is so near the C.G. point of the 370Z that the force is reduced to practically zero at that wing.

So what force????