The Land Rover was the British version of the Unimog. Built for agricultural tasks at around the same time period. The mog has grown to be a far superior vehicle for the job but it doesn't take away the role that the old Landy played in post war British agriculture.
I think every working tractor rally should have at least of couple of Landys. Ideally with the belt PTO running old kit like they used to. Something like a mill or pump