Lola la Trailera (1983)

Lola finds herself into the world of violence and drug trafficking when her father is murdered for refusing to put his truck to the service of a powerful cartel, with protections at high police levels. Knowing the local officials will not serve out justice, she takes matters into her own hands. Armed with a machine gun, she'll attempt to get revenge by her own hands - but the enemy has more firepower than her.