This past weekends humidity from light rain off and on combined with some moderate heat in the paddock drove home the need for an AC unit. Despite the daytime heat, at night it was very comfortable with just the fantastic fan doing its thing (I slept like a rock). With some downtime between now and the next race (June 20th) I am going to make a board to mount a small AC unit in place of the "emergency exit" window to swap out when we reach our destination, not something I would feel comfortable with keeping in place while driving.