Though Hitler never learned to drive, he was very interested in cars (he also created the autobahn, which led to the U.S. interstate highways). Hitler wanted the car to hold four people. It was to be cooled by oil instead of water. The car needed to be able to travel at least 100 km/h, or about 60 mph, and use no more than 7 liters of gasoline for 100 kilometers (about 34 mpg). The car companies in Germany at the time didn't want to make this new low-cost car, so Hitler formed a new company, run by the government. The first name given to the car was "KdF-Wagen." "KdF" stood for "Kraft durch Freude", or "Strength through Joy." Some were made, but by the time the factory was finished in 1938, World War II started. The factory then built jeep-like cars for the German military instead. 