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
Tiger II from research, training, and a five-tank attachment to the Panzer Lehr, the Tiger II was only issued to heavy tank battalions ("schwere Panzer-Abteilungen") of the German Army ("Heer"), or "Waffen-SS". A standard battalion ("Abteilung") comprised 45 tanks: Units that used the Tiger II were as follows: Early Tiger IIs proved unreliable, owing principally to leaking seals and gaskets, and an overburdened drive train originally intended for a lighter vehicle. The double radius steering gear was initially particularly prone to failure. Lack of crew training could amplify this problem; drivers originally given only limited training on other tanks were often sent