Sometimes it's fun to be different and engineer things just to be different. Common sense goes out the window as excitement builds around a new idea, I tend to do that. When cars first started having AC, the evaporator was in the trunk and the vents came up behind the rear seats in front of the rear window. Time, logic, reason, and efficiency moved the components to the locations now found in the majority of the production cars today. Anything can be done but why waste the little trunk space available for AC when it can be put in places already available?