The famed Wienermobile, originally designed by Oscar Mayer's nephew, made its debut in 1936. Although gas rationing kept the Wienermobile off the roads during WWII, it has been back in action since. Each year, college students compete for a one-year rotation driving it cross country. It does occasionally have mishaps, such as this July 2009 incident:
One would like to think that if the Wienermobile were still build on a Jeep chassis, this might not have happened.