I had originally planned to attend this event (August 2001), but could not make it
http://www.lambocars.com/events/monterey.htm
http://www.concorso.com/2001/post_event.asp
A silver C12S was at the 2000 show.
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Pagani's Zonda super-car was shown by Michael Lederman. It was the actual Geneva show car, painted in an appealing lemon yellow and powered by an AMG tuned 600hp Mercedes V12.
Mr. Lederman had one of the best lines of the day: "It may not be armor plated, but it doesn't have to be. It outruns the bullet!"