M4 Sherman "The Right Tank for the Wrong War"

The_Chieftain: Christies were dead-end designs, though. The Soviets ditched theirs in favour of torsion bar, and the British ditched theirs for bogies. The US went from bogie to torsion bar and skipped Christie entirely (despite buying a few for testing). The Germans similarly went bogie to torsion bar.   By way of example of the problem, imagine having to change some damaged suspension component on a Sherman. Then try and do the same thing on a Cromwell or T-34. Further, the Christie suspension takes up a lot of room inside the tank which could otherwise be used for things like ammunition or just space for the crew. It's not as if the Christie design, which did have some merits, don't get me wrong, was all good with no downsides. Something like "Easy to repair" is very important to an army fighting 5,000 miles and an ocean away from the factory.