I have been using Vred for a while and I have some suggestions to add to this awesome rendering engine, especially 2021 version. Here are my humble suggestions:
1- Add rain effect with generation of rain drops over the car
2- illuminate fog by showing light strays coming from car lights
3- add option to the emessive material that enable lights to fade in radial way. Something like Mercedes AVTR concept.
4- add 3D scenes to the software example with their textures for movie creation. Scenes like city, desert, country side.
5- ability to assign wheels as an automatically moving component once you move the car with calculation of their RPM according to speed of the car on the time line.
6- add the option of adding shadow material to all ground parts of the scene i.e. including bridges and tunnels
I hope that can be helpful and exciting!!