Theres currently two (that I know of) z car clubs in the DFW area, Cowtown Z and Z Car Club of Texas but they are all in dallas and cowtown is in the fort worth area. I've been contemplating starting a Z club for the area north of Dallas. Personally in my family we have five z cars (71 240z, 81 280zx, 82 280zx, 2x 83 280zx), we live in Lake Dallas and would be looking to have members from Denton to Carrollton. I'm not really sure of the Z car population in these areas, but if you live around there let me know.