A fleet of brandmobiles shaped like a hot dog on a bun, called "Wienermobiles", are used to promote and advertise Oscar Mayer products in the United States.

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.

[citation needed] In 1976, Plastic Products, Inc., built a fiberglass and styrofoam model, again on a Chevrolet motor home chassis.

[citation needed] 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,[clarification needed] and sports fourth generation Pontiac Firebird taillights.

[citation needed] Following 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.

This version held a record for numerous suspension problems, most leading to the chassis not being able to hold the large weight of the Oscar Mayer Wiener.

[19] Toys and scale replicas of the Wienermobile have been made over the years, with Hot Wheels issuing die-cast versions of the vehicle.

Officer K. Lankow had observed the Wienermobile slowing traffic and checked the license plate to determine if the vehicle was street legal.

[24] On January 26, 2020, a Wienermobile was pulled over by a Waukesha, Wisconsin, sheriff's deputy for violating the Move Over Law, which requires motorists to switch lanes to pass an emergency vehicle with its warning lights on.

[25] In February 2023, during the Super Bowl LVII weekend, an Oscar Mayer Wienermobile in Las Vegas had its catalytic converter stolen.