A little-known fact about Porsche is that in addition to being the inventor of two of the most famous cars in the world, the Porsche 911 (and its predecessors and variants) and the Volkswagen Beetle (commissioned by Hitler), Porsche was also Hitler's chief tank engineer, and designed the infamous Tiger Tank, among other military vehicles. He was later arrested by the French as a war criminal, for the slave labor used in his factories during WWII, and spent 20 months in jail.