This was my first year doing autocross and did the Equipe Rapide #9, NTAXS #4, and the BMW Autocross #8. I enjoyed all three, but I preferred Equipe Rapide and NTAXS. All three groups were friendly, but the BMW club was more expensive, and didn't allow you to ride as a passenger unless it was in an instructor's car. With NTAXS you could pretty much walk up to anyone and ask them if they took passengers (it is enormously helpful to ride with someone that knows what they are doing. Don't ever ride with me!!!)
Next year I will definitely become a member of equipe rapide. There is a membership meeting next Tuesday. Check out their website. They pay for good results.