Quote - So, this is only at 35 samples right now (single sun, ran it for 3+ hours at 2880x1680.  Smaller would have been much further along).  The glass on the car isn't showing up like I want it to, the glass in her glasses on her face isn't showing up well (yes, there are a pair of glasses a car, Doc/Bob).  They are set to architectural, with a reflection color of a gold-ish color, and white transmission.  I'm trying to get a good semi-mirrored (i.e., mirrored, but transparent, so that there is a fair bit of reflection) look on both.

Any comments/suggestions?

 

BTW, the Porshe model is availble from here in the freebies:Porsche

I have run across the same thing lots of time when working with glass.

Also check your alpha channel in Reality. If you go into Reality and the surface is read from Daz as Matte when you convert it to glass it leaves the Strength of Opacity setting down around .40 instead of .99 or 1.00