@Thoennes The lighting thing is mostly thinking about what lights would be like in the real world in the scene and then playing with light strength till it looks right. The car expo thing has the lights modeled into the building so I just turned on emission for them and that is all that is lighting that scene. All the surfaces use my super shader (car included). The sunset just uses an hdri on a dome and one light set real dim and orange colored for the sunlight.

W10, Ryzen 5 1600x, 16Gb,RTX2060Super+GTX980, PP11, 11.3.740