I visited PIR last week (first track day for me this year). What a perfect track for visitors to unwind during your summer convention. It was a rare springtime sunny day and I took some in-car video. I've posted two here to encourage anyone on the fence about signing up for that event. You'll love it. Easiest track on tires in the NW.
Video #1: Ferrari 430 appears, then disappears
Video #2: A couple of laps in the clear
Sadly for me, although I am an AROC member and love me some Alfa sheetmetal, I do not not own an Alfa, so will not be able to attend your time trial event (unless room is made for an open non-Alfa group). Definitely would have to pick up some NT01s for that! Have fun! All those vintage cars in the paddock. Sigh.