Just to clean-up the Patent links...
Crossfire Coupe (original Design by Eric Stoddard, et.al.):
http://www.google.com/patents?vid=USPATD455676
Crossfire Coupe with Production mods (Stoddard, et.al.):
http://www.google.com/patents?vid=USPATD476601
Crossfire Roadster (Andrew P Dyson, et.al.):
http://www.google.com/patents?vid=USPATD500000