COM Sports Car Club

I just found out about this organization and am interested in participating in Time Trials. Does anyone know if COM will be hosting events at NJMP, Watkins or Summit Point like it has in previous years?

Can someone tell me which class an 07 BMW Z4 3.0si (Non-M) would fall in? I tried entering it in as a custom car in the spreadsheet but I didn't know what value to use for the Suspension Index. The 330i and Z3 have different values so I didn't want to assume anything.

Thanks!