The BMWCCA's run groups are all generally faster than similar skill level groups among the local Audi clubs. In other words, the drivers in the advanced groups in the CCA are more skilled and generally faster than the "Advanced" groups in the Audi clubs that I've run with. I view the Audi events as heavily biased towards the social side of the coin. These events are generally filled with less experienced drivers and instructors, as Dave mentioned. The BMWCCA has more hardcore drivers in the more advanced levels, and BMWs are more capable cars on a racetrack than Audis generally speaking.

I'm currently an instructor candidate with both groups, and the BMW mentors that I've been introduced to have considerably more experience than the Audi mentors with both instructing and club racing (which I hope to be doing in the next several years). Because of this, the BMWCCA can provide better, higher quality instruction to advanced students in my experience.

The BMWCCA has ALOT more chapters than the Audi club, which means many more events to choose from for us ;^)

-Cy
1991 Mitsubishi Galant VR4
1999 Spec Miata

dba Speed Shack - Norwood, MA