Has anyone ever done it? How?
Yes, this is a serious question. I keep losing my secondary paddling vehicles. First, someone in my family took my Honda CRV. Recently, my wife took over the Saab, for which I shopped aggressively and successfully for Thule racks.
Now, I've been given back the 1995 Mustang convertible. I'm tired of lifting canoes onto my van, so I fantasize about using the Mustang. I suppose I could get a trailer, but they seem like such a hassle to me. Plus, I'd be fired from the Pony society for putting a trailer hitch on a Mustang.
I used to know a guy who used an MG or Triumph convertible to carry his Perception HD-1. He had constructed some sort of arrangement with metal pipes, which he could only use with the top down. I have no ability to build such a thing.
I'm thinking of just putting a canoe on foam blocks on the vinyl convertible top with straps going through the windows. Maybe if I position the foam blocks over the horizontal bars in the convertible top. But those bars are not real strong. But, but, the canoe isn't really that heavy.
What about air flow lift? Maybe the whole rag top would rip off at highway speed. That would be ugly. But maybe that's just an exaggerated fear.
Paralyzed with a lack of empirical evidence and weak hypotheses.