Modeling software architecture for software intensive systems like future automated driving vehicles becomes increasingly complex, compared to Advanced Driver Assistance Systems currently available on the market. The complexity and novelty of the customer functions and the hardware and software platforms demands for an agile development methodology. In this paper, we introduce why and how we at BMW apply a Treat Architecture like Code approach for the software development for automated driving. We introduce the requirements which lead us to this approach, the tools and artifact flows around the tools, and how we embed this into our agile development. We show examples from a real vehicle function.