buy a plane.

this company close shop already.

UPDATE: It turns out WaterCar is no longer in business. "After several years of engineering and producing the best Amphibious vehicles the world has ever seen, WaterCar has been forced to close down production due to the new CARB ( California Air Research Board ) regulations," Chad March, son of company founder Dave March, told MotorTrend in an email. "We are formally announcing we are putting the company up for sale. "

The sale includes all of WaterCar's patents, along with the manufacturing equipment (molds, fixtures, and tooling jigs) necessary to build the Panther, Panther XL, and Python. So if you're an entrepreneur in the market for a car-boat hybrid to build and sell, here's an investment opportunity for you.
https://www.motortrend.com/news/watercar-pa...photos-history/