>>1990874>>1990875>>1990876>>1990877>>1991166I think a big problem with this style of velomobile is that windows are too big. And on the sun it becomes an absolute hot box. This might be good in the winter (if you're lucky to get any sun), but in the summer it would be insane.
Windows should be as small as possible and forward slanting (like boats. see pic). this prevents direct sun exposure.
Also should be the same on the sides. Aerodynamics might suffer a bit, but if you make the window curved and on the side some channels for the airflow, I think it can be mitigated quite well.