http://xtremeclassics.com/aero_devices.html
The Problem.
The original Ford GT has aerodynamic lift over the front and rear axles. Figures are:
100 lbs. @ 150 mph, with 525 lbs. of drag
144 lbs. @ 180 mph, with 756 lbs. of drag
177 lbs. @ 200 mph, with 933 lbs. of drag
The Solution.
Ford did...