@Nitroo start with zmodeler3 forums then imprort a simple basic 2 door car to zmodeler start learning every individual part and material on it based on tutorials and problem section in zmodeler3 forums it has answer bellow in comments so see problem and see solution by time you will figure out how thing goes but need time and and time and moooore time i remembre my first mod still have installed in my game it hell of mess but then step by step things be better no one born walking