The 1024 x 768 of the 71 HemiCuda took 24 minutes. The nice trick about using photo-real sets like the DAZ Cyclorama is that they render VERY FAST- so its mainly stuff like chrome reflections that slow down the most. The H2 Hummer Safari vehicle at 1600 x 1200 took about FOUR HOURS! I should'nt have made it so big for a test render (since the HemiCuda went so fast) but the Hummer REALLY SLOWED DOWN when it came to the wire mesh over the windows. The calculations for that went S L O W... ---However, if it was a FINISHED commercial project I would not have a problem setting it for 3072 x 2048 and letting it take 10 hours--- overnight--- to get TOP QUALITY. I've also seen the same thing with Poser babes- stick with KOZ hair (or a style made the same way) because some of the other hair models that use individual strands are VERY SLOW to render. Anything with a GRID or reflective mesh will really slow down renders. Radiosity is even SLOWER!