Pile Up: World’s Biggest Crash Test (Channel 4, Sunday, June 15, 2025)

Channel 4 Logo Black on Green Background

Channel 4 is staging a large-scale motorway pile-up for a one-off science special, Pile Up: World’s Biggest Crash Test, airing Sunday, June 15, at 9:00 PM GMT. The program’s concept is audacious: to engineer a multi-car collision involving members of the public who are, at least initially, unaware of what’s about to happen. The purpose is to study vehicle safety and driver reactions in a real-world, high-speed crash scenario without the variables of a computer simulation.

Of course, an experiment of this nature requires a massive amount of planning and safety oversight. The production makes clear that advanced engineering and control systems are in place to ensure no participant is ever in genuine physical danger. The focus is on data collection, not disaster. As the controlled chaos plays out, a team of crash test investigators is on hand to analyze the sequence of events, examining everything from vehicle crumple zones to the effectiveness of modern safety features.

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The special aims to answer questions that are difficult to resolve in a traditional laboratory setting. How do different models of cars hold up in a chain-reaction crash? What can be learned about driver behavior in the critical moments before impact? By staging this elaborate, high-stakes test, the program seeks to provide tangible insights that could inform future car safety standards. It’s a bold piece of television that sits at the intersection of public service announcement and high-concept spectacle.

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Isabelle aka Izzy Jacobs is the features editor at memorabletv.com. Isabelle is particularly drawn to crime dramas, but she also has a not so secret love for all things reality TV. In addition to her work at memorabletv.com, Isabelle is also an avid traveler and a devoted foodie.