Someday maybe I will scan some prints of my wife's old (60-61-62-63-64-65-66-67...) yeller bug that she rolled. We took the doors off and the remaining glass out and used it for a "mountain buggy" the rest of that summer.
It went pretty good with less weight, but we still couldn't quite make it up Flag Mountain (about 13K'). It powered out about halfway up from the pass to the summit, and I had a bit of fash getting it turned around up there.