I don't know that Saxguy said it was for a Coupe. In looking at the way the glass canopy is mounted, I can imagine that the top edge of the glass is a structural "strut" that helps the roof line rigidity in the NSX-T for sure. In order to make the NSX as light as possible, every single member is likely to perform some additive stuctural role in the overall calculations. IMHO While the added rigidity may be less than 5% of the overall left to right strength, it still figures into the equations and can result in unintended asymetrical stresses on other components.
Oh, I may have forgotten to mention that I am one of the founding members of the Lab for Scientific Visual Analysis here at Virginia Tech and have worked on Super Computer Simulations on these kinds of structural dynamics in all manner of vehicles with the National Center for SuperComputing Applications. But, I will conceed that there is a chance I could be mistaken.
------------------
Gordon G. Miller, III
Y2K NSX #51 Yellow/Black
[email protected] http://www.g3.com