http://www.wurthmotorsports.com/3-30_event.asp
That's right, Wurth Motorsports has the Full (12 turn) completed Sears Point track! And they still have space available for the event. There will be all sorts of cars there, and they offer AMB timing and have rental transponders.
Current Car Types and Counts by Challenge Class
S2000 Challenge: 10
Corvette Challenge: 27
Miata Challenge: 5
Other attending car types
550 Maranello
F355
360 Modeno (new)
Audi S4
Boxster S
WRX
M3
RX-7
911 Turbo
NSX
Camaro
Mustang Cobra
300Z
Viper
CRX
Eclipse
Come join us!
http://www.wurthmotorsports.com/3-30_event.asp