posting tweaks that work for me:
I'm using 8x CSAA w/ 2x supersample. The only downside is that the graphics might be too clean/smooth on this setting. However, this seems to be the best setting overall, and actually makes the game glitch less and run smoother.
Do not implement any strange config tweaks. Most are unnecessary and can easily make things worse. First set the graphics within the game's control panel. Second, do not force AF above 8, as that can cause artifacting. Third implement these tweaks in rageconfig.cfg:
seta com_allowconsole 1
seta com_skipIntroVideo "1"
seta image_lodbias -1
seta vt_lodBias -2
seta vt_minlod -1
seta vt_feedbackLodBias -1
//seta jobs_numthreads 4 //THIS YOU MAY WANT 4 ON
//seta vt_cudaBudget 16
//seta vt_maxPPF 64
The LOD tweaks are what actually fix the blurries, as the game is too aggressive with mip mapping. Do not change the FOV, as that will make pop-in/artifacting a lot worse. Also, do not mess with uncompressed textures unless you have lots of memory, as it will cause stuttering.
If you really want to mess with a million settings here's a good tweak site:http://donotargue.com/cfg-makers/rage/
However, I don't recommend changing anything other than the lod settings I've mentioned above.