THE MOST POPULAR CAR in the history of car manufacture is the Volkswagen beetle, originally called the KdF wagen. The car was developed in Germany in 1930s by Dr Ferdinand Porsche. At that time, Germany had only half the number of cars of Britain or France, And Aldolf Hitler took a personal interest in the development of the Volkswage ("People's Car") The intention was to provide a new industry, new jobs, and a car so cheap that anyone in work could afford it. Dr. Porsch designed a car that was cheap to build and run; its rear - mounted, air- cooled engine cut down the number of parts need and also reduced weight. However, few civilians managed to obtain the Beetle before the outbreak of the Second world War in 1939. After the war, the beetle proved so popular that eventually more than 20 million were sold.