What Boekanier meant, was that you should add a plane geomertry hovering somewhere above the car. Give this a flat/non shaded color.. could be called something like incandescense or luminosity. the idea is to have the plane reflect on the car.
Yah, give hair/fur a try and see how it works out for you - there is also the option of instancing poly grass. That is much more memory efficient and faster (when rendering) way of doing it, than having unique duplicates of the grass patch.
4GB will most defenately help - not just in this case, but for 3D in general. One thing you do not want is to have the PC swapping while rendering. What would take 1 hour might take 10 while swapping.
If you cant render hair/fur, then I'd recommend to only place poly grass along edges, and bit here and there on the actual field, and use texture on the field. Can often look better than poly only grass.
True, and they can have pros and cons on different areas, but the renderes you are mentioning are all capable of producing same image quality (in stills).
No offence, but you don't. MR is one of the leading renderers used in movies and TV productions - it wouldn't be so if it was a bad and "cartoonish" renderer.
No offence to Boekanier, but it's not like he's the benchmark of what can be achieved - see, you are still missing the point about renderers vs user. You should instead have a look at the different renderers website and then compare.
Now I'm typing "you" too much. My original and following posts are directed to everyone who are looking for better renderers. Stop looking and start learning.
Then explain me this: why does the quality of many renders (even from the same person) posted on this forum vary so much, even though same renderer was used?
Stop looking for renderes, shaders etc, and learn to do proper shading and lighting. Theres no "über LFS render" shader/renderer etc. If you ever think so, it's because you're too far from understanding and utilizing a renderer to it's full potential.
Nice renders - first one a bit too overlit which drags it down imo.. but most importantly: you killed the renders with the high compression. Don't do eeeeeet.