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Over the last years, great chances and challenges came up in the vehicle development process due to the broad range of variants with the reduction of development time at the same time. Increased cost pressure forced the OEMs to limit prototype built phases in development. At the same time electrification of sub units took place, where the Electric Power Steering (EPS) is a typical representative. Motivated by the carbon dioxide discussion, currently all OEMs substitute the Hydraulic Power Steering (HPS) with the EPS. Nowadays the development of passenger vehicles is facing great challenges. Besides the broad range of variants, the rising numbers of electronic and software components force the OEMs to develop new engineering processes. By using a reasonable combination of virtual methods, test rig measurements and conventional vehicle tests great enhancement of engineering processes is achieved. In case of having objective parameters characterizing the development target, simulation results can be evaluated by using a meta-model approach. These meta-models describe the cause-and-effect-chains in complex mechatronic systems and can be used for very quick and accurate systems tuning, sensitivity analysis or even robustness analysis. Hence the meta-model approach is a very flexible and powerful method, but requires highly physically based system models. These models must be parameterized by a special identification process to obtain best prediction quality. Models for an EPS as well as a vehicle were proposed. The virtual-supported approach is extremely effective in costs.