Unless of course the Germans did not factor in the idea Russians would have a comparable, let alone better, tank than them when they invaded.

They expected a repeat of the French army capitulation and found a far better army than their anti-slavic literature groomed them to believe they'd be facing.

They expected Russian farmer rednecks, not an industrialized modern army (although I refuse to extend my praise to their infantry which had plenty of issues, other than their dogged determination, which was a serious threat when Hitler was demanding quick wins, even when they did always eventually win).