Ive had this design in my head for sometime one of my local customers switched vehicles so he liked the concept and told me to run with it. The enclosure net volume is 1.5ft^3. Tinted .5" glass for the five windows and .25 lexan for the edge lighted logo. The side windows give a good view of the side profile. Arcs all around the box help the sub breathe in the cramped space underneath. Enclosure sports two braces in between the long 50" span.