[DrKnow65]

Erevocanuk, the problem it that the minute physics of aerodynamics do not scale as perfectly as we thought even ten years ago. That's why F1 has a new variation of their wings and body nearly every year :-)

I think in Nic's design you can see by the open rear section that they are going for a heavy negative pressure under the entire body as opposed to wings and such to create downforce at the cost of high drag.