Drive-Away Dolls concludes with the two main characters, Jamie and Marian, embracing their newfound love and becoming romantic partners after their wild and dangerous journey. Their trip brings them to Tallahassee, where they visit Marian’s aunt Ellis, and they finally express their desire to marry each other—a decision Ellis initially reacts to with shock, but ultimately accepts. Throughout the film, Jamie’s playful nature and Marian’s more reserved personality clash and complement each other, and by the end, their relationship has deepened and shifted from friendship to love.
The story reveals that the mysterious objects inside the Dodge Aries—particularly the severed head of Santos and the hidden briefcase containing adult toys—are connected to a criminal scheme involving a corrupt senator, Senator Channel. Santos was murdered because he refused to give up a collection of plaster casts of the senator's private parts, which could potentially cause a scandal if made public. These casts came from a bizarre encounter the senator had during his youth, involving a woman named Tiffany Plaster Caster, who creates plaster copies of people's reproductive organs.
As the plot unfolds, the criminals’ plan was to ship the briefcase and the head from Philadelphia to Florida, disguising it as a drive-away car. The keys to the scheme fell apart when the women unexpectedly found the bizarre contents during their road trip. This led to a series of chaotic events—including their kidnapping, murders of some criminals, and ultimately, a confrontation with Senator Channel himself. Channel attempts to kill Jamie and Marian, still seeking the plaster cast of his compromised physique, but is stopped by Sukie, a cop and Jamie’s ex-lover who arrives just in time to shoot him. The commotion causes the briefcase to break open publicly, exposing the adult toys and plaster casts, which sparks a scandal that destroys Channel’s political career.
In the end, Jamie and Marian, now in a loving relationship, decide to settle down together. They drive toward Massachusetts, where lesbian marriage is legal, feeling free and validated in their love. Their journey—the chaos, the danger, and the absurdity—has led to a new chapter built on trust and affection. Meanwhile, the final scene shows a small paper bag left behind at the hotel, containing the adult toys, suggesting that the bizarre and potentially embarrassing evidence will be quietly forgotten as they move forward, embracing their future together without the weight of the scandal. This conclusion reinforces themes of love overcoming chaos and societal judgment, with the characters choosing to focus on their happiness and connection.