I've been playing with the beta of Brazil 2.0 rendering engine for Rhino 4. This seems to be a REALLY powerful engine. The toon shading is awesome, and the metal and glass shaders are really killer as well. I am getting much better results on metal and glass using Brazil for a few days than i am getting with Modo for almost one year
Anyway, here are the "toon render" test images of today...
shorty