The designs found in the pages of "Roadable Times" offer various ways to provide wings for roadable aircraft. In the case of "Modular" designs the wings may be attached and removed. In some "Integrated" designs the wings may be folded up. In others they are retracted or telescoped into and out of the body of the machine.

One possibility that might be worth considering is inflatable flying surfaces.

The idea may not be as unlikely as it sounds. Although not applied to "roadables", some experimentation with the concept of inflatable wings actually has taken place. In the 1950's the Goodyear Tire and Rubber Company conceived of and built a completely inflatable airplane. More recently, NASA has done experimentation with inflatable wings.

A website page featuring the "Goodyear Inflatoplane" is located at -

http://davidszondy.com/future/Flight/rubber_plane.htm

The author of the site does express come concern about the possibility of the wing collapsing while in flight, but perhaps newer technology may come up with an answer to this problem.

The website page featuring the "NASA Dryden Experiments" is located at -

http://www.dfrc.nasa.gov/gallery/photo/InflatableWing/HTML/ED01-0273-1.html