In a world wherein cars act like humans, Junior wants to be a taxi, but his mother wants him to grow up to be a nice touring car like his father. Mom doesn't know that Junior sometimes skips school and ventures into the city to ride in traffic, drink hi-test gas, and race trains.
| Actor | Role |
|---|---|
 Bernice HansenJunior (voice) (uncredited) | Junior (voice) (uncredited) |
 Martha WentworthJunior's Mother (voice) (uncredited) | Junior's Mother (voice) (uncredited) |
 Mel BlancGasoline Service Man (voice) (uncredited) | Gasoline Service Man (voice) (uncredited) |