Sorry for the slow response, been a tad busy.
It certainly is. Good spotting. No race meeting there anymore, but very occasionally photoshoots. Wayyy before my time, but our ZClub over here used to do a number of track/race meets back then. More race tracks around now, so less need to use airfields. 3 have 3 track tracks/dragways less than an hours drive from the Auckland CDB now, and another 2 tracks just over 2 hours away.
They're all lovely aren't they.
The goldy/bronze one has a lot of club history, as do most of the old school zeds.
Quite a few variations around, so yes quite likely. They're becoming very collectable again. At Concours d' Elegance we always have swarms of people around our Z Club display stand, for the 240- 370.