How do I fix so I can see cars and not half of a car and similar. I've tried some settings but I dont get it. seems to happen when more than a few cars are drawn. example: http://i.imgur.com/rmWcdD6.jpg
Check your auto detail FPS setting. It will make bits disappear to try and maintain your target FPS; set it to 0 to disable. If not that, ... I think there might have been previous reports of similar, maybe there was a solution somewhere.
Just guessing, but it looks like certain car materials do not disappear (rather than half car). Could be due to material naming in mod, I've never seen this with ISI cars.
I saw car partially displayed on ISI cars, but no clue to found any way to reproduce and found what can cause this. We have to found what can lead to that to check if the mod have issue to fix. Today we don't know if it's mod related or rF2 related (constraint or bug)
Add max, high, med and low setting to each part of the car. We had same issue with URD cars, that solwed the problem.