Audi Engine - Substance Designer

Finally, squeeze some time to create my new personal work. I always wanted to make my own substance designer work. (most of my work before was for client's project, such as MHW, RE7, etc) This time, I want to create a little different material. So, here is my Audi engine. 100% substance designer. Everything here just a simple plane + substance material. Rendered by Iray and Toolbag, enjoy it. :) 

Iray

Toolbag

Height map breakdown

Toolbag viewport demo

All the details are built from these four primary shapes.