The "Panther" medium tank, with its formidable power of attack and fast maneuverability, soon became the object of terror to men of the Allied Forces.  The Pzkw-IV and the Tiger-II tanks were produced by German technology and were both outstanding tanks.  The Pzkw-IV was meant to be replaced by the Panther, and the Panther, showing improved attacking and defensive powers and accurate maneuverability on the field, soom became the German's main strength tank.  The first mass-produced Panther, type D, was not equipped with a machine gun until after the experience of close battle.  The special feature of the Panther was the left and right driving mechanism.  This created an interchangeability of movements, using the torsion bar system.  The Panther was an extremely balanced tactical tank and should be called a masterpiece destined to bear the last glory of German war technology.