I have been attending the Pebble Beach/Monterey car events for years. Love driving down Hwy 1. The link is a comprehensive list of automotive events/auctions during the week in August, 2012. You should be able to find a few events you like.
And... get your room reservation at least 6 months in advance.
http://www.pebblebeachconcours.net/t...83dc1df89e.pdf