Yeah, Ive seen a few smarts up close and they got some cargo room. Seeing such a small trailer I thought you could just pack it in around your passenger.
It all depends on how you effect the aero. You can ask 10 different people and get 10 different answers. I was of the assumption a double headed bullet was the best aero shape, which is close to what you got now with the box backwards. I mean those who experiment with camel backs are basically doing the same thing.