well that may be true but at the end the GT3 still is faster than the CSL on the track..I thought that was the sole reason for one car to "kill" the other. Also, it has to be taken into consideration that sometimes small advantages of a car can not be put into a better lap time on NS. --> see GT3 vs. GT3 RS
by the way, I know how good the CSL is, my everyday is a E46 M3 with SMG which has been around the ring countless times...