Im amazed at how many people look at my car with my rear hatch opened, and NOT realize that there's a glass there. I get more "it must be hot and loud inside that cabin" comments than anything. Once at an autocross, some porsche driver claimed that my car was unqualified to run because of the exposure to the engine from the cabin. He even walked a judge over to my car and attempted to put his fist through what he thought was an opening between the engine and cabin. Of course, not expecting an impact with glass, he didnt stiffen his knuckles up and BAM. A nice way to make an ass out of yourself in public, i must say.