Sethodine
Elio Addict
If nothing else at least the idea of an enlarged trunk got people thinking about it. From a personal perspective I believe the tiny trunk of the Elio is it's biggest drawback in making it a practical car. How often will an Elio owner be forced to take "the other car" when they want to do some serious grocery shopping or take the wife and go on a little trip? Great mileage is a wonderful thing, but it doesn't do you any good if you have to drive your other car because of a lack of room in your Elio.
A number of saddlebag type devices have been proposed, and will certainly be a prime area for the aftermarket to fill.