Great screenshots! Please put your screenshots here next time http://www.beamng.com/threads/1141-Community-Screenshots?p=235670#post235670
Personally I don't see why this needs to be tied into the community screens it could easily be turned into a Post FX modded screens thread or something but that is just my opinion.
Okay, you asked for my colour ramp, here it is. Feel free to include it in your mod, all I ask for is you credit me. I made it by combining two other colour ramps then altering it, it's designed to significantly improve contrast, use cinematic colours, and improve colour vibrance (but not oversaturating.) For it to look good, turn down SSAO a lot, decrease bloom, and put HDR's tone mapping contrast to 0. It might not be good for general gameplay but it makes some nice screenshots. Some screenshots for your thread: