I say fragile as in the 3 odd years I have owned the Ward it has been off the road 50% of that time due to machanical failure.
1 x seized engine, 1 x knackered rear axle, and 1 x knackered gear box.
I think thats enough for me to class the Ward as fragile.
It was designed to tow tanks - in 1943 when it was made.
Besides that, spares are difficult to get hold of - last time I had to buy another vehicle to repair mine.
Of course more modern wreckers will be up to the tasks - but do your legal homework.