Dan,
Excellent post. Good data presentation. More of this stuff is needed here.
You might find
Mulsanne's Corner interesting.
They have very good articles on current sports car as well as old and the aerodynamics therein.
One story on the Pantera. We were at the Savannah race track in the early days (1972) for a SCCA National with our March 712's. Somehow, one of our works drivers (Kevin Clower) got Ford to lend him a new Pantera for the week. Of course we drove the hell out it and had a lot of fun.
However, Sunday morning on the way from the motel to the track, I was driving the car and of course feeling my oats.
We were driving the main road from the motel (I do not remember the number etc.) and this road had an easy bend to the left and the turnoff to the main road to the track was a “Y” sort of thing. Maybe 20 degrees off the main road.
I had my foot in it and we were traveling along at about 120 mph when we reached this turnoff.
Well, I turned the wheel and we continued along in a straight line. Did not make the turn, and we ended up driving through the field between the two roads. (Luckily, the field was flat and no damage was done other then filling the radiator area with Georgia grass.)
There was a bunch of front lift in that car. Enough that it would not turn at 120 mph. We were quite careful with this car from then on.
Plus, Kevin refused to ride with me again in anything other than the transporter. He was a bit of a pu**y in some ways.
PS: I think that you need to use the width number instead of track on the GT40. 72 inches is the number on the car you are looking at.