Someone with whom I work told me about the latest BMW car club event which will take place at the Qualcomm stadium parking lot on March 27, 2004. They recently changed formats so that BMW drivers get first dibs, but apparently if you get their early enough you have a good chance of getting in and being able to run.
They set up cone tracks for timed runs and have instructors available to chat with too. If any MB owner is going to be in San Diego on the 27th of March and wants to give some Beemers a run for their money you should check it out. I may try to make it later, but unfortunately don't think I'll be able to run my C32 (coordinating reasons). [:(]
Apparently all you need is $45 and a helmet.
Here is some additional information:
http://www.sdbmwcca.com/