Erwin Komenda XXX: "swinging-axle suspension, independent suspension, braking systems". Also a streamlined small car with rear engine was developed. In November 1931 Komenda joined the engineering office newly founded by Ferdinand Porsche as head of the bodywork design department, which he headed until 1966. Among other things, he developed the body of the VW beetle. With more than 21.5 million copies, VW Beetle became the best-selling automobile of the 20th century. With a graduate engineer Josef Mickl, a Porsche employee specializing in aircraft construction and aerodynamics, Komenda developed the bodywork of the P-Auto Union racing car and Cisitalia racing car. As early
3rd SS Panzer Division Totenkopf fighting alongside the 5th SS Panzer Division "Wiking" and the "Hermann Göring" Panzer Division destroyed the Soviet 3rd Tank Corps. The terrain around Modlin is excellent for armour, and "Totenkopf's" panzers exploited this to their advantage, engaging Soviet tanks from a range where the superiority of the German optics and the 75 mm high-velocity gun gave the Panthers an edge over the T-34s. The efforts of the "Totenkopf", "Wiking" and "Hermann Göring" divisions allowed the Germans to hold the Vistula line and establish Army Group Vistula. In December 1944, the IX SS Mountain Corps (Alpine Corps-Croatia) was encircled in Budapest.