The Gibbs Sports Amphibians are the most intense, extreme all-terrain vehicles seen to date. With a BMW Motorrad K1300 engine, the Quadski is capable of attaining speeds of 45 mph on land, and with 140 HP on the water can also achieve 45 mph water (39 knots). Known for advanced engineering, Gibbs is especially proud of the suspension in this all-terrain/amphibious vehicle, with a superb ride and handling on land and on water. Most impressive is the change from land to water takes under five seconds, and only requires the push of a button.

Price: $40,000