Big problem. Not really any flow of fresh air in and stale air out currently. I've come to the conclusion that, at the very least,
I need to cut out the current roof fan and replace it with a stronger roof fan. It's also become apparent that the addition of computer fans in the back door to assist the small hidden vents behind the license plate do little to help the airflow along. "A" for effort, though. Which leads me to the next conclusion that I will also need to cut at least one hole in the backdoors to install the horse push-vents in order to truly open up airflow. I've also been contemplating a floor vent.