For Halloween 2025, SIXT and Jung von Matt Hamburg launched "Renting with competitors can be horror" – a series of AI-generated horror shorts, each based on a real one-star review left for a SIXT competitor.

The creative logic is elegant: Jung von Matt combed through public customer reviews on rating platforms and social media, selected the most dramatic ones, and turned them into storyboards. Berlin-based production company Lipstick then paired each story with an individual AI artist, giving every clip its own distinct visual style – while keeping the horror genre intact. The original review is shown at the end of each film, underlining that the horror is real.

The lead film "The Things" kicked off the series, with further clips rolling out daily until Halloween on Instagram, TikTok and YouTube. The campaign targeted an international audience, with a particular focus on the US market – the world's largest car rental market, worth over $40 billion – where Halloween carries the most cultural and commercial weight.

Eliah Werner, Vice President Brand at SIXT: “Why AI? Because if there’s one thing artificial intelligence does spectacularly well, it’s imagining the supernatural, the unexplainable, the otherworldly – the kind of stuff that should only exist in horror movies but somehow ends up in real-life 1-star ratings.”

This is one of the sharper examples of AI used not just as a production tool but as a strategic asset – turning a competitor’s weaknesses into branded entertainment, at seasonal speed, with an almost unlimited visual range.

Watch the films "Caranormal", "The Things" and "Bloodsuckers"