There have been questions as to what constitutes a full lap on NS... 26,600 meters, or 26,823 meters. This lap was timed at 26,600; and would need an additional 3-4 seconds to make those last 223 meters.
It's become quite popular now to use the 26,600 meter as standard, where as only a few years ago, the standard was 26,823 meters... so there is quite the perceived notion that cars are going "that" much faster then they were just a few years ago.
The lap is incredibly fast, no doubt.... but to compare what the underpowered CGT did (compared to the Zonda F CS) with non-ideal dry tires, (but good wet tires)... and did 4 years ago already... such is technology. the F ought to be faster, its newer, and more powerful... and can get that power down to the road with greater success.
What is crazy to think is that a 997 GT2 can lap NS in 7:32 (apparently 26,823 meters) ... with only 500 ish HP