I had never heard of this South African vehicle, so I did a bit of searching, and here are some results to save other people searching time:
CLASSIC BUY: Chevrolet Nomad (1976-1980)
From The Archives: 1976 Chevrolet Nomad
CC Global: Chevrolet Nomad – Out of Africa Edition
CLASSIC BUY: Chevrolet Nomad (1976-1980)
From The Archives: 1976 Chevrolet Nomad
CC Global: Chevrolet Nomad – Out of Africa Edition