Well I've been thinking. I've seen something called the bush winch which fits a pulley onto your wheel hub like this:- Now, if you ran a belt over that hub to a spindle mounted on the front bumper, you could turn a propeller and all we need then is wings for a Flying Copen! Fit the propeller assembly to the rear instead and add some flotation tanks, we have a Water Copen! Honestly, it's probably a good thing I have limited access to metal fabrication facilities.
