Many will find this video of German tank manufacture interesting - German propaganda video showing how tanks were built c. 1942-4.Germany, like Italy, insisted on designing and using "old world" manufacturing techniques for almost everything, including their tanks. These time consuming methods involved much machining, forging, and hand fitting. This is fine when you are making sports cars or cuckoo clocks for peacetime-but in wartime, large numbers of all weapons are needed, not fewer numbers of finely polished goods, that have a short battlefield life measured in weeks or just days. The Russian T-34 is an extreme example of this: it was a very effective tank, but with the absolute minimum of machining that the designers could get away with and crude to the extreme (the commander and gunners seats did not even revolve with the turret, the floor was fixed- and the crewman had to pivot in their seats as the turret moved!). As a result it was much easier for the Russians to make over 50,000 T-34's then it was for the Germans to make fewer numbers of different models...for instance, from 1942-1944, the Germans were only able to make 1400 Tiger 1 tanks-even if the Tiger 1 could knock out the T-34's at a rate of up to ten to one, it was not enough to win the war for Germany.