I added some meshes to the models for the powerlines to make a better visibility in the distance.
It worked for me at anisotropic filter 16x without much flickering.
As there was some critics about the dark texturing - I did a night race for testing and felt it could be a little brighter with the headlights - so I raised the diffuse level to 0.2 .
Seems better in the night and still not too bright in the daylight.
Have fun in the night!