Has technology killed the modern 4x4 ???

[Yendor]

Ok....question time....(I'm liking this debate Rod...lol).

If you had 2 cars...

Brand new 1990 GQ TD42 N/A engine and a brand new 2.8/3 litre litre GU Patrol.

Drive continuously around Australia (fairly moderate/extreme type of offroading) from mud to salt to deserts through rivers and muddy holes to snow and salt water until one eventually had a "Fault" and had to stop.

Which one would most likely stop "Running" first?

Don't know, how can anyone answer that?

The question is, what one might fail before I sell it and move on to the newer model?.