This is a good topic, and I am sure that we will all learn some from it.
As I understand it, it goes something like this:
Before WWII the Germans had three main tanks. The PZ II was originally supposed to be a vehicle that would participate in tank to tank combat, but it was realized early on that its capabilities would not be sufficient for this role. The PZ III was the main battle tank for the German army for the early part of the war. The PZ IV was meant to be an infantry support vehicle. When the Germans annexed Czechoslovak in 38, or 39 (it was in there somewhere) they obtained the 35t and 38t tanks, and all the production resources for these tanks. Obviously these newly acquired tanks would see German service.
There were heavier tanks being developed, but they were not a priority because there was no immediate indication that these tanks would be needed. When the Germans rolled over the French, and with victories in N Africa, this attitude was just confirmed. When the German Army attacked Russia in June of 1941 they ran into the T34, and this would change EVERYTHING!!!!
The T34 was far superior to anything that the Germans had. The PZ IIIs 5cm gun was no match for the sloped armor of the T34 and its 76mm gun. All of a sudden the development of a heavier German tank became top priority. All the designs being developed for a heavier tank went out the window and new designs were started. Until these tanks could be produced though, something had to be done. During this time, the Germans mounted any capable gun on any available superstructure to deal with the T34. This is why there were so many different types of AFVs used by Germany. (Interestingly enough, it was initially proposed that the T34 be copied, but this was believed to not be practical)
When the Tiger 1 and Panthers first became available, it may have been too late for a German victory. By the time the few Tigers saw combat in N Africa, a German defeat was already imminent. After the defeat at Stalingrad the Panther would debut at Kursk, but this was a huge disaster for the Panzer divisions involved. The German army had just lost 2 armies in N Africa and Stalingrad, and a lot of valuable tanks at Kursk. The German echelon realized the situation and did not want to stop production of existing tanks to refit the factories for production of the new tanks. The theory was that the Panzer units needed numbers and to stop the production lines to refit them was unacceptable.
This remained the case until the end of the war. You ask if so many different tanks in use had an effect on the outcome for the Germans? YES!! By the end of the war, unit commanders were dealing with serious supply issues. On top of that, making sure that all the right parts and correct ammo got to where they were needed to be was an impossible task. An abandoned German tank because of lack of replacement or interchangeable parts was a common site towards the end of the war.
Do I think that the Germans could have won the war if they had been reduced to production of only the Tiger II, and Panther tanks? Probably not, but perhaps they could have forced a stalemate. Of course this was only one of many issues that doomed the Germans. (thank God for that!!!)
Not an expert over here, but its my
. sorry for being so long winded, hope I helped answer your question.
Leopold, anything to add, or correct?
feel free...