Gas rationing kept the Wienermobile off the road during World War II, so Oscar Mayer and the Gerstenslager Company came up with a solution. They built several new vehicles based on a downsized Dodge or Willys Jeep chassis. They not only looked cooler, but the new models were rockin' and rollin' with high-fidelity sound systems. One of only five created during this bygone era can be visited at the Henry Ford Museum in Dearborn, MI at the Wienermobile Cafe. These Wienermobiles were driven by "Little Oscar," who often visited stores, schools, orphanages, and children's hospitals; and participated in parades and festivals.