[aerohead]

Originally Posted by freebeard

Google found 'About 11 results (0.45 seconds)' searching on 'Aerodynamik des Kraftfahrzeugs'. First result:
https://ecomodder.com/forum/showthre...orm-28260.html

Thanks!'
I speed-scanned the thread, and unfortunately, I didn't post any 2D studies, except for the asymmetrical wing sections, as the 2D wouldn't be germane to passenger cars.
From the asymmetricals you CAN see how the Cd develops as the aft-body is increased in proportion to the 'nose.'
The same thing happens in 2d.
The FKFS demonstrated that the Cd goes asymptotic @ a thickness ration of 21.3% of cord*********************************.
Any additional 'fineness' would only increase drag again, on account of the added skin friction.
L/d = 4.694 = Cd 0.065.
Marchaj places the drag minimum for a 2D section @ L= 3.92X the thickness.