įollowing mechanical problems with the Isuzu Elf, Oscar Mayer decided to adopt a larger chassis to accommodate an increase in the size of the signature wiener running through the middle.

In 2004, the Wienermobile included a voice-activated GPS navigation device, an audio center with a wireless microphone, a horn that plays the Wiener Jingle (in 21 different genres from Cajun to Rap to Bossa Nova), according to American Eats, and sports fourth generation Pontiac Firebird taillights. This version also included the upgraded large parallelogram windows which could now open, as designed by Sheldon Theis.

In 1995, a new version increased the size of the Wienermobile to a length of 27 feet (8.2 m) and a height of 11 feet (3.4 m). In 1988, Oscar Mayer had a fleet of six Wienermobiles built by noted industrial designer Brooks Stevens using converted Chevrolet van chassis. In 1976, Plastic Products, Inc., built a fiberglass and styrofoam model, again on a Chevrolet motor home chassis. The 1969 vehicle was the first Wienermobile to travel outside the United States. In 1969, new Wienermobiles were built on a Chevrolet motor home chassis and featured Ford Thunderbird taillights. These Wienermobiles were piloted by 'Little Oscar' (portrayed by George Molchan) who would visit stores, schools, orphanages, and children's hospitals and participate in parades and festivals. One of these models is on display at the Henry Ford Museum in Dearborn, Michigan. Although that first Wienermobile was scrapped for metal in the 1940s to aid the US Army during World War II, in the 1950s Oscar Mayer and the Gerstenslager Company created several new vehicles using a Dodge chassis or a Willys Jeep chassis. The Oscar Mayer Wienermobile has evolved from Carl Mayer's original 1936 vehicle to the vehicles seen on the road today.

Oscar mayer wienermobile