Thank you all for the answers.
Here I found something in the Ferrari chat.
http://www.ferrarichat.com/forum/288...s-fiorano.html
ChalStrad in the forum said:
"An XX is a laboratory. It is an experimental car that is also designed for the gentleman driver to exploit. It is no mean feat to put almost 1100 horsepower into the hands of a non professional and put a smile of the driver.
The 488 GT3 is a pure racing car where no concessions are given to anything other than performance.
Power is not everything. Aerodynamics are crucial and the 488 GT3 is an aerodynamic masterpiece"
A 488 is quicker around Vallelunga than a FXXK by about 1 to 1,5 seconds (depending on the BoP the 488 has and, of course, the driver).
It is fair to say that the FXX K (and even the older FXX) annihilates a GT3 racer on the straights and then gets spanked in the twisties.
For example at the end of the straight at mugello I brake 100m earlier in the K than in the F1 and yet at that point I am 8km/h faster in the K notwithstanding the slower exit from the parabolica. Yet, I am 24 seconds / lap faster in the F1 car.
What is important is to compare the comparable."