Not to mentioned too that that the R8C and R8R were developed by different people and run by different people. R8R was Joest's baby and R8C was RTN, which went-on independently developing the R8C's evolutionary model which was then acquired by VAG and turned into the Bentley.....Hence the misconception in most cases that the Bentley was just a roofed R8.The 2 were quite different animal...
On the fogging issue, what I did see was when the car was hit with Dome's oil and the windshield basically has no visibility. For a open car the driver can just just a tear-off, the closed car it has to pit to clean it off.....The same is true for dirt, grime, and dead bugs. Visibility is a big issue IMO in a closed car.
University of Toronto Formula SAE Alumni 2003-2007
Formula Student Championship 2003, 2005, 2006
www.fsae.utoronto.ca