Carlos from Spain:
Lars997:
Topspeed:

https://www.youtube.com/watch?v=Tz-k4QWxnAY

991 GT3: 1:18.95
Cayman GT4: 1:20.28
991.2 Carrera 4 S: 1:20.52
Corvette C7: 1:21.72
Mercedes AMG GT S: 1:21.79
911 Carrera S: 1:22.98
 

If I see those numbers I really have to question how comparable those driving situations have been. Weather, tire, driver, ... .so many factors which make a difference. However - a C4S in second generations must be faster than a C2S in first. But does it really make 2 and a half second?

Well the change from the horrible Pirelli Pzero N0 to the new N1 could account for 2 seconds itself...

There we go - that's what I'm saying. As long there are not the same conditions it is not comparable!