Manufacturing automobiles requires energy and resources on a large scale. Higher vehicle mileage could result in a significant drop in the continuous energy demand during production, while also reducing the extraction of natural resources considerably. This is where the KOSEL research project comes in; a project that has seen the Fraunhofer Institute for Machine Tools and Forming Technology IWU join forces with partners from industry and research: Vehicle components that have a long service life can be used over several vehicle life cycles and therefore do not need to be produced anew. With this in mind, the project team has developed a closed-loop open-source modular system that consists of particularly durable and reusable modules.