This info is from Josef Katz's book Racecar Aerodynamics. If you are interested to read it you can go there: http://sportcars-history.com/ . You can find this book in "books" category on the right side of main page.

Also, more info about sportprototypes aero data you can find there: http://www.mulsannescorner.com/data.html

The most interesting thing there, to my mind, is the comparison of aero efficiency between prototypes and open wheelers:) Lots of people say about F1's leading in aerodynamics, I think it is no so...;)


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