Profesor Chatarrín functions as an antagonist within the narrative. He repeatedly plots to steal the sentient vehicle protagonist from its companion, the young human Ken. The professor's goal is to take possession of the unique automobile for his own purposes.

Throughout the series, Profesor Chatarrín persistently pursues his attempts to capture the vehicle. His efforts create constant conflict during Ken and the automobile's journey to locate the latter's mother, forming a recurring challenge across the storyline.

The narrative concludes with Ken and the automobile successfully finding the mother vehicle. This resolution ends Profesor Chatarrín's pursuit as their quest concludes.