Got a ZFest due over here too, see here: http://zroadster.org/forum/threads/bmwccgb-zedfest-26-–-28-july-2013-silverstone-circuit.2211/I have a 2006 Z4 3.0i, silver gray, no mods. I previously owned a 2000 Z3, 2.5.
I am the South GA Area Rep for ZSCCA. If you are not a member of Z Series Car Club of America, check out the website. We are a nationwide club and are growing and making many improvements. ZFest, our annual get together is Labor Day weekend in Greenville SC. You can sign up for ZFest even if you are not a member. Check ot the ZSCCA. You'll be glad you did!