[dont]

But its a good thing they don't have to go thru any certification process as there are numerous places they would fail---and I am surprised that so many would be so negatively vocal about the most basic automotive fundamentals that concern safety issues only to honk there "I got 600 hp" horns[/quote]

As would most cars on this forum. You had mentioned in an earlier post that the SPF would flex in the door area before it would crack the windshield. Please explain.