I wish the expedition had a good English webpage. Because the Czechoslovakia had more important things on a plate at a time, proper progation or movie was not made - most of what is out there are amateurs trying to do their best.
The car had a motorcycle and glider that was carried in the back. The crew visited so much stuff, had so many adventures. They were arrested in Guatemala, one of the drivers died as on a boat in Pakistan.
Here is the map: http://tatrakolemsveta.cz/post/show?postId=5
This looks like it should be a competitive Mars rover being televised like Nascar