And that was a wise decision. Despite an interesting and aerodynamic design, the Aptera 3-wheel concept was not practical for any large market, and would have been very expensive to produce in small volumes. Like the other X-prize finalists running 3-wheel designs, Aptera was more of a design study than a marketable product.
To date, there are still no production-ready enclosed 3-wheelers for sale in the U.S. and I doubt there will ever be. The inherent safety and comfort trade-offs are too great for more than a few novelty-loving customers.
The question in my mind is, who is next to fold? Up-start auto companies funded by venture capital don't have a shining history (DeLorean, Bricklin...). Will Tesla and Fisker make it, financially, or will they burn through their cash before catching on?