Any benefits of having a lower roof?
I've got 72" headroom and I'm fine with it, I'm 5'9" and designing the bus with only me and a dog as the primary passengers.
However, I am curious if there is any actual benefit of having a lower roof. I not sure if that bit of roof taper after the driver area in the 78" models will have too much effect on airflow. The material difference seems minimal, just a bit more glass and metal per window, and a few inches more of metal on the between window columns.
On the other hand, other than the obvious lack of headroom, is there any practical downsides of having a low roof?