I would love to see rain, snow and icey road conditions in beamng i think it would be amazing. For the night vision, i love driving in night but in beamng at night lightning is not enough and not satisfactory for me. I play with high/ultra settings and still no good. I kinda compare the night time with assetto corsa and it would be much more great to drive like that but i like beamng more so... yeah.
For the driving at night thing, mess with the overall brightness settings (so you can see better) in the meantime. Just go to world editor (F11) and type in sunsky. It should be down that list somewhere.
there are a couple or recent released mods that add lights to cities in the night, from like less than a week ago