Disappearance at PF International

Take a good look at this picture, something important is lacking this year at PFI. What can that be?

The rain is not the answer, nor over 150 pilots on the list, or the opening of the Torsion Bar.

There really is something tangible missing, a conspicuous absence in this picture. What is it?

Info Kartcom with Kartlink / © Photo KSP