The buildup of BiW simulation models brings up several challenges, which the engineering team must overcome. The presented workflow includes the necessary steps, starting from a CAD geometry file to the generation of a meshed BiW model, ready to be used for all the required engineering analysis disciplines, e.g. Crash, NVH, Durability etc. The challenges emerging and how these are addressed are highlighted. Starting the process, we should consider that the “design files” do not always include all the necessary information, and sometimes the provided information is wrong. Furthermore, in most cases, these files are not available at the same time, which increases the complexity of the process and the probability to introduce errors while working on the model. Users working on the model preparation often do not use the same settings, in some cases, not even the same software. All this leads to a lack of robustness. Of course, during the development phase of the BiW model, several parts get a design update and need to be inspected. Which of them includes critical geometrical changes? Is any model affected by this update? Crucial questions arise that every user must deal with, and to have them answered, appropriate workflow and software tools are needed. Among the most challenging issues are storing, browsing, querying, and updating the data. To automate the BiW model-build process, the employment of an SDM-System is essential. An effortless, trouble-free, continuous, and direct communication with such a system ensures the best quality of the process. This presentation reveals how AUDI AG has set up a workflow that supports the user throughout the process, ensures the usage of the same settings for all users, prevents the errors generation in each step, and monitors the entire process. The software streamlines the process, communicates with the user, and informs him, in a user-friendly way, about the parts of the model that are not processed each time. Especially developed software functionality supports the user during the model update. This highlights all the changes between the different versions of the part, not only at the attributes level but at the geometrical level as well. During the workflow, all processed data are stored in the SDM system. This way, the data are available for all users to work on them and set up the upcoming necessary simulation analysis scenarios. This well-established solution, through a user-friendly interface, ensures the automated and robust browsing, viewing, and updating of the data.