Los violadores (1981)

Hal is proud of his white Chevrolet Sting Ray. After going on a date with young Babsi, a gang of rockers ambushes them. Hal wants to be the hero, reacts aggressively and causes a traffic accident in which one of the rockers is killed. The rockers strike back immediately and rape Babsi. Hal mobilizes his friend's karate club and takes up the fight against the rockers. He swears revenge on every single rocker and a brutal fight begins.