For sheer numbers of cars, and an upbeat attitude I recommend this show, in a giant parking lot next to Knottsberry Farm. It has over 1,000 Fords, including about 5-to -6 real AC Cobras, dozens of replicas, maybe 50 Shelby Mustangs, over 500 Mustangs in all, not to mention Cougars, Falson Sprints, Montegos, Capris, Lincolns, Model As, Model T, Ford GT, Fiesta, some European and & Australian Fords, starts at about 8 am ends officially at 3 pm. Right off the 91 or 5 freeways. Site with info:
http://www.fabulousfordsforever.org/faq/index.html