Crusher Kid, also known as Crasher Kid, is a 14-year-old racing prodigy who challenges Speed during the Earth Grand Prix preliminary rounds. He competes with significant confidence in his racing abilities. During the second preliminary round, Crusher Kid proposes a bet involving Speed's associate Trixie, stating she must agree to a date if he wins the race; this wager provokes Trixie's displeasure.

Despite demonstrating notable driving talent, Crusher Kid experiences a crisis of confidence when Speed gains the lead during their competition. It remains unclear whether this loss of self-assurance causes him to withdraw before the race concludes. Crusher Kid's sole narrative presence occurs within this specific Earth Grand Prix race event.