these are most likely NZ assembled sedans with non exhauste emision L series engines.
I saw a twin carb offered with powersteer as a NZ new car.but it could have been an import engines.
the wagon is interesting as its not australian an not exactly japanese.I wouldnt have thought they would locally assemble lots of versions.
This is the facelift 910 Bluebird, which if I remember rightly came out in early 1982. I had a 1982 Bluebird ZX-E as mentioned in the brochure. The sedans and estates were all assembled in NZ, with all trim specs being very popular back in the day. They all came with single carb L series engines, L16 in the 1.6GX and L20B in the 2.0GX, ZXE and Estate, with pretty much no emission control gear and IRS on the 2.0lt sedans and live axle on the 1.6 sedans and estate. Not listed, but available here was the 1.8SSS coupe, which had the L18 with twin SU's. None of the 910's here had power steering.
There was also a limited edition Bluebird Venturer, which was available during 1983. They were all 2lt and came in either 5spd manual or 3spd auto. They were basically a 2.0GX with the rev counter dash from the ZXE and Venturer decals on the exterior. You could option them with the electrics pack (elec windows, central locking etc), which was standard on the ZXE, which also gave you the plusher ZXE seats and door cards, though it wasnt uncommom to have the ZXE door cards and basic GX seats.
Externally the estates and sedans were pretty much identical to the Japanese market 910's. The seats, door panels, wiring, carpets etc would be sourced from NZ suppliers as part of the "local content" from locally assembled cars. Funnily enough, the exact same door mirrors were fitted to the facelift 1982 onward C31 Datsun Laurel hardtops which were sold new here.