What's that? how do I view what's available etc...? I hear it mentioned multiple times on this forum about folks buying cars there and very good price and most are pretty happy with it. I'm in the market for an S550 but I'm finding that the dealers are asking even more than what it was a year ago.

It is a Mannheim auction that is once a month and sells higher value vehicles. No Chevy, Hondas, Toyotas, etc. Mostly higher end vehicles.

Find a dealer that will take you on craigslist. Many will do it.

does anyone know a dealer in SF Bay for this?

yes, call Boris from Sprintauto sales. i bought my S550 from him 415-827-1247