This somewhat is unknown for the Elio, although I'm sure the designers should have some idea by now. Later I can get more detailed about the expectations. But for now; it's easy to say the very popular VW bug was about as bad as it gets. And was considered livable. Based on what I know, the Elio will be much better than a Bug in most respects save one, buffeting. And it probably will be better in that one too.severe cross winds.
There are small and surprising things that can be done for a form like the Elio, should any of that be a problem.