I wouldn't worry about the top of your car rack, I know a few guys who carry there cats up there(Albiet its in pieces)Can this twixxie thing be up there without being taken apart? I just looked it up for hte first time online, looks like it has a little size and freeboard. Does anyone know a person in this gentleman's area that could give him a ride on a boat similar to his choices? Bottom line i think that would help him make a descision based on what would make him happy.