All details about the Event http://www.fchgt.com/challenge-and-gt-days-2018/
We try to get always the best cars for the event like here the 355 Challenge they won championships and races.
Groupe 1 – 1993 to 2006: Ferrari Challenge/GT No.1 – 348/355/360 (inkl. 348 GTC/LM and 360 N-GT, GT, GTC)
There is also a special thread in the forum about the Event http://www.fchgt.com/forum/viewtopic.php?f=7&t=869