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GG Technik offers a new solution to an age-old quandry: How can I ride my jetski really fast on land? The German company's quad was likely created for those with paid-up life insurance and a suicidal streak wider than a dozen George Baileys'. A 1.1-liter boxer-style engine offers up 85hp, which can propel the four-wheeler to 100mph, by way of a six-speed gearbox. It's no prototype, either. The first production models have already been delivered to customers.

GG-Quad [via Pistonheads]

Subaru STi-powered ATV [internal]