[Don]

Wayne, regarding " NASCAR & The Wing " ( my quotes ) that you mentioned earlier. I do not recall when the wing was introduced if there was a very specific reason for a wing instead of a spoiler, other than the obvious attempt at straight line downforce. Just about every, if not 100%, of other race series uses wings, domestic or international, I think.

Not intended to be critical, but NASCAR's style of racing and the layout of tracks, along with close contact, which are strictly " racing incidents " , did not lend itself to the wing concept. Especially when the car gets sideways or is lifted off the track from unintentional contact.

Do not recall the exact numbers, but mentioned was a jet airliner achieves lift at approx 150 MPH

A few posts back I mentioned the cars with the wings are being tested in the wind tunnel , backwards. Would be informative to view these findings. An unknown is if the backward wind tunnel testing had been done prior to the introduction of the wing.

McLaren in F1 for 2010 is now channelling air thru the car and exiting over the top of the wing, driver controlled, appears other Teams will do the same. F1 also uses the shark fin concept that NASCAR will adopt.