Oscar Mayer's Wienermobiles will return to the Indianapolis Motor Speedway for the Wienie 500 on May 22, adding a fun and light-hearted competition to the Carburation Day festivities. The race will feature all six Wienermobiles, each representing a different American regional favorite with custom decals and drivers in Hotdogger racing suits. Fans can participate in choosing the final entrant through an Instagram bracket. The event promises to be bigger and more engaging than last year, with organizers aiming to deliver an unforgettable experience for fans.