As anyone who went there can tell you, it's an absolutely overwhelming event. It's pretty much every single Porsche you can imagine, ever, all in one place -- and most of them racing on the track.
But my favorite picture is from the time I got to spend with Andreas Preuninger, the head of Porsche's GT Department and the guy responsible for just about all of the modern 'bucket list' Porsches I can think of.