@Endat
Here's a pic of the Euro's engine bay as-acquired:
On the 931, there's not really anything noticeable in the engine bay to distinguish the Euro spec. The main differences are the pistons (8.5 CR), the wastegate spring (.8 bar), and the DITC unit. Note that the air cleaner and strut bar mounts in this photo are not stock items.
@Adrian
I meant, send me your email, and I can include you on future email invites
As for track days, I have not done any track events yet, but I'm working on two track toy projects, one is a monster 931 ultra wide body, and the other is this car, which I am going to accelerate so I have something to learn on before venturing out in the UWB.