Apparently the Sherman tank they have at the war museum here was the only surviving D Day vintage Sherman at the end of WW2. Not sure if that means it was the only surviving Cdn one or the only surviving allied one. Regardless, there were several thousand that were off loaded at Normandy. That should give you an idea of the poor survivability of the Sherman tank in combat. It had a 1:6 kill ratio compared to German tanks, meaning 6 Sherman tanks and usually their crews were lost for every German tank lost.
I am the genie of the toaster, here to grant you three wishes... provided they are of a toast-based nature.