OSAGE, Iowa --- Just 8 years old, Jim Chisholm has already achieved an impressive racing record. His family's machine shop features a wall of trophies that might rival a small high school. Chisholm ...
An innovative group of engineers from American powersports company Polaris built a unique vehicle prototype in 2010. This three-wheeled (two up front, one in back), open-cockpit machine looked like a ...
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