What automobile, still seen on the roads with minor variations, did Ferdinand Porsche develop under the behest of Adolf Hitler?

Ferdinand Porsche developed the Volkswagen Beetle under Adolf Hitler's directive in the 1930s to create an affordable 'people's car' for Germany. Hitler wanted a mass-market vehicle that ordinary Germans could afford, and Porsche designed the iconic rear-engine car that became one of the best-selling automobiles in history.