Check this out for some shell modding. Expanding foam bodywork.
http://www.youtube.com/watch?v=fTODFVHKE6c&feature=fvw
Fred.
Makes a change from stiffening up Fiat Stradas for the track by filling all the void spaces with foam as in days of old. The end products look kind of "kamikaze" but don't half sound good.
spot on love it. bit full on for any of my cars.... lol