Based on documentaries I saw on the History Channel, the Germans decided to hold their panzers in reserve because they were indeed anticipating that Allied landings were going to take place in the Pas de Calais region. This belief was brought about by a great ruse that the Americans and the British perpetrated on the Germans for months before Overlord. The Allies created phantom divisions and locations and created radio traffic between these phantom divisions to create the impression among the Germans that the Allied landings will take place in the Calais region.
A few German generals (but they were in the minority) really believed that Normandy was the likely point of landing due to the fact that the Allies expected that the Germans WON'T EXPECT them to land there. It also didn't help either that when the landings started on the early morning of June 6th that the panzers could not be deployed immediately because the Wehrmacht's generals were under very strict orders to obtain Hitler's blessings before the tanks could be deployed. It is one of the sad and tragic stories of WW2 for the Germans that their supposed great Fuehrer, Hitler, was still asleep and could not be roused from his sleep while his men were getting blasted and dying in Normandy waiting for tanks that came too late to make a difference in the outcome of the battle.
This is what I have been led to believe too. Unfortunately for the Germans, the deployment of any Panzer Division required the personal clearance of Hitler.
Edited by Dr_PepPeR, 07 May 2006 - 12:54 AM.