R-Pod frontal area

Multiplying width * height from the brochure specs (6'5" x 8'8") yields 56.61 sq. ft. That includes the air conditioner in the height figure, so it is somewhat less, since the AC does not cover the whole width of the roof. In any case, it is over 30 sq. ft.

I found the AeroPlus from PurpleLine USA.
http://www.purplelineusa.com/products-aeroplus.php

This helps to change the dynamic and makes towing easier since it improves the airflow, reducing drag. I have noticed a significant increase in fuel mileage since I purchased this and installed it. I am towing with a 2016 Ford Escape SE with factory tow package and 2L Ecoboost engine. I really do recommend this. I only have this installed while towing, as PurpleLine states to limit the speed to 60 mph while it is installed. Also, to have it installed while not towing would be bad for vehicle mileage.



I installed this using nylock nuts instead of the plastic hand-tightened nuts. They would have pressed against the car roof, which was unacceptable. It is also quite easy to install and remove the cross-bar with the AeroPlus attached, much easier than trying to attach it to the cross-bar while it is installed. I had to do some small modifications to adjust for the low height of the cross bars so that the bolts would not dig into the car roof also. This involved adding more spacers between the plastic shield and the bracket that sits on top of the cross-bar.