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S04E06 Snowmobile January 9, 2002 Channel 4 The challenge is to build a one-man snowmobile. The test course, in the Mammoth Mountains, northern California, is circular with a 300-metre diameter. Each team has 10 minutes; the winner is the team whose snowmobile covers the most ground. In the event of breakdown, they’ll be allowed to do repairs and restart twice.
