Agreed, I also use Maxwell, but still use Brazil depending on what I'm working on. I just uploaded an image (BMW Z8) that uses a tire material that I've settled on using in Rhino. It's a very simple BAM with fbm texture…"
Nice model! A couple of comments:
1. Tires appear a little too black and shiny, I would make them a little more gray, and perhaps add a little noise to more accurately show a rubber tire material.
2. Looks like you made the same mistake as I…"
Looks like you did use dispersion, but minimal reflection? You could try rotating/shifting the HDRI image (assuming you did use a HDRI environment). Also, DOF may be a little too much, the top of the ring at the rear is slightly out of…"