Yeah, I agree -- I think frontal area is a more significant factor at this level of racing than CD. It seems to play out in the real world as well. My car has crappy CD, but is tiny. Seems to do ok at 120+ as a result.

Note also that I think "downforce" aero at these speeds and with these implements is a mistake. Just my opinion but whatever downforce you generate is going to be far offset by drag, which is the key thing to me from observation. For IT, and I would think STL, you want the slipperiest car possible with the smallest frontal area.

For the NSX fanbois (I've been toying with the idea), CD looks good but frontal area? That car is WIDE and not all that short.....