The Quadski may seem like your typical ATV/Jetski powered by a 1.3-liter four-cylinder BMW engine pushing out 175 horsepower and 103 lb-ft of torque, the Quadski is capable of attaining speeds of 45 miles per hour on land and on the water. The Quadski weighs in at a 1,300 pounds and measures more than 10-feet long. This one-passenger amphibian is likely to have a significant range thanks to its 15-gallon gas tank. The Quadski can be driven directly from the land into the water; its four wheels retract and deploy at the push of a button.
Source Gibbs Sport