document: The PDP is Product Development Process. New Stellantis standard for projects in development. With the creation of Stellantis, one of the engineering priorities has been to define a single global process for projects in development. Milestones and concepts are applied to all new projects initiated since October 2021. The PDPs are built based on best practices of our legacy operating models (SOD for exPSA and GVD/GPD for exFCA) and new ideas to simplify and make our developments more robust. The number of milestones reduced to 9. A shortened global development time of almost 20% with integration of Software deliverables at each milestone and increased quality requirements to ensure our products are at the top of their classes.