The Comet could claim to be the most effective British tank of WW2, although it only reached 11 Armoured Div in Feb 1945. It was regarded as the equal of the Panther.

It's predeccessor, the Cromwell, could claim to be the fastest tank of WW2. Both were eqipped with the formidable Meteor engine, a derivitive of the famous Merlin. The Cromwell reached 7th Armoured Div in time for the invasion and also equipped recce units. It had a first class operational record in NW Europe.

Finally, what about a Centurion Mark III? The operational record is hugely varied - British in Korea, Australians in Vietnam, Israelis in the Six Day War and so on.

Unlessof course it has to be any tank as long as it's German......
Stephen,