We have come across this retro rig several times in our travels. The tow vehicle is a 1948 Chevrolet Stylemaster ute/pickup and the caravan is a 1969 Viscount Ambassador.
The Viscount is just 10ft 6in long, but has travelled right around Australia – and up through the middle as well. The interior is pure 1960s. You can read more about the van in the current issue of the online magazine Time To Roam.