The Saleen Aquada($TBD) is cross between a Jet Ski and a quad bike, it can reach speeds of 40 mph on land and water. The Aquada is intended to work as a sports car on the road and a speedboat on the water. "Simply press a button and drive into the water. The wheels automatically rise and as you press the accelerator nearly a tonne of thrust pushes the Aquada onto the plane. The whole process takes less than 12 seconds. The Aquada can plane at over 30mph." from Saleen Aquada