>>64167763
the VK prototype that would eventually become the panther was a 35-ton medium tank that would replace both the panzer III andIV
one prototype was essentially just a german-ized T-34 which would have been cheaper to produce and had a diesel engine
the second was essentially something closer to what the germans already used, just with sloped frontal armor
hitler actually preferred the first design, the diesel engine would have actually helped with the german oil shortages because synthethic oil can be converted to diesel more easily than petrol and made it so the navy and their new tank could use the same fuel
the brass preferred the second design, because it had a more modern torsion bar suspension and it used the same engine as the tiger, so they could just take advantage of existing engine production while also giving it more internal volume
the brass actually won out in this case, with the second design winning out despite hitlers preference for the first
hitlers decision to increase the gun and armor actually came before operation citadel was planned, but he did delay operation citadel to make sure he had more panthers available for the operation
speer certainly thought the armor was unnecessary, claiming that the increased weight basically negated the original idea of a 30-ton medium tank