Be real!!! A glass car takes a lot of work to get right!!! In many cases more work than a steel car!!! What the heck does it possibly matter if the body is steel, glass, kevlar, or composites??? If all your looking at is the body, your missing out on the many, many other things it takes to build a rod.

I do agree with the pre-49 stuff, though I can understand it sometimes has to be done to limit the size of the event to fit the faility where it is being held.