I lived in Matamata, we had a club in a farm house on Taihoa North Rd. The owners had built a new house, so the old house had some walls ripped out and a HUGE track made. A good lap time was nearly 15 seconds. The main straight was long enough for a 1/24 scale drag strip with slow down room.
Also a very big commercial track in Rotorua. That had a big banking and if you weren't fast enough the back end slid down the banking and locked up the slot guide. Amohau St I think.
I took a bus with a suitcase with some clothes and a handful of cars for a trip to Auckland and visited every commercial track I could. Must have been about 1965/66. Customs St, Queen St, one near old Papatoetoe/Hunters Corner, one at New Lynn. I seem to remember more, but can't think where.
I bought a whole lot of cars (maybe 30 odd?) in Oz when the scene was shrinking, and cleared Customs declaring that I had a whole lot of "toy cars" to declare. I made enough to buy my first car with the profit, and paid no duty
Sorry, no photos.