Thanks! Didn't think that problem could be in rear axle, I changed data in [AXLE] to the one from Kunos Trueno and now it's much better! Actually the Kunos Trueno have some problems with it to, but it's almost unnoticeable. But what do you mean by adjust toe on both sides? I didn't see any L/R settings, just toe in front and toe in rear.Most likely it's cause it's a solid axle car, they tend to settle a bit to one side and not track straight. If it's accurate in the first place then you can't really improve it other than adjust front toe equally on both sides (ie. +0.05 one side, -0.05 the other until you do enough to center the wheel).