BMW's new concept car, the GINA Light Visionary Model, has a body made from futuristic fabric, rather than metal. We don't know what happens in the event of a crash or a fire, but we do know that it looks totally revolutionary. And at one point in the video, the car seems to be alive.
You might also take a look at this piece on MIT architecture lecturer Sheila Kennedy, who's creating designs for flexible photovoltaic materials, which could lead to the construction of soft, solar-powered houses.