Car/Boat conversion platform

My SO and I are touring NZ, working on farms for room and board. Driving around I see all the touristy things, ferries, marinas etc. I had a brain wave and imagined a floating platform, like the bottom half of a boat, with dynamo rollers. You’d park your car atop it, strap the front wheels into cradles that would transfer your steering motion to the rear propeller, and your rear wheels would power the propeller via rollers. You could cruise the islands at your leisure!

You’d probably need stabilizing catamaran type floats to deal with wonky weight distribution, and a front wheel drive would be much more complex. I can also imagine some vehicles over heating from a lack of frontal wind speed. Anywho, now and again I dream up crap that comes into existence years later (like the musical road).

Does a car to boat conversion exist already?

Amphicar

DUKW

Gibbs Aquada

Perhaps what the OP had in mind…

Amphibious Land Rover

Or you could do it in Top Gear style

Say… I have a Triumph Herald I’m not using… :smiley:

That’s why I linked to it. :smiley:

I guess no one has bothered to read the OP. It’s a good idea and I do not know that anyone has built it yet.

I don’t think there is any advantage to building a car powered boat generally. You still have to tow the boat. You have to make significant compromises on the design of the boat in order to make it car carriable. You are essentially building a towable car ferry. The ramp makes the boat much more complex as does the wheel driven transmission.

This can all be done, of course, but I’d rather just run with a Gibbs Aquada.