Guy attempts to build and race the world's fastest soapbox racer, creating a unique design with help from expert designers, and training with the Team GB women's bobsled pair. To watch the full episode click here https://www.channel4.com/programmes/s...

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Welcome to the only official Guy Martin Proper YouTube channel. Make yourself a cup of tea or twenty & follow every race, every build and every country Guy visits. Fair play.

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