If you are ever in Southern California on the Weekend, you MUST check out Cars & Coffee in Irvine on every Saturday Morning 7 - 9 am (except this weekend, because of Monterey)
It is the most unbelievable collection of cars showing up each weekend, not some annual show, and it is different each weekend. Classics, exotics, foreign, hot rods, one of a kinds, etc. I am sure many of them will actually be at Pebble Beach. If you are a "car guy" or gal you can't miss it. Check out this link to some pics of the weekend I was there:
http://public.fotki.com/wackydave/cruise_nights/cruise-nights-2007/07-14-07-cars--coffee/
It is a pretty cool site for lots of other car pics, too.