There's a wealth of information available here: ApteraForum.com - Aptera Car Forum - Many of the depositors belong to this forum, and there's quite a few technical people. All kinds of things are discussed.
When people make this argument, I always ask: Why did you get the Prius instead of the Insight? The Insight gets even better fuel economy than the Prius and is a great commuter car. If Honda still made the Insight, I would go out and buy one today to replace my other car and use the Insight for commuting.