SAPA and Mondragón University are collaborating on the development of a production system based on variable demand, called “Demand Driven Adaptive Enterprise” (DDAE). This system is designed for the manufacturing of propulsion systems (e-axle) in electric commercial vehicles, specifically trucks and buses over 3 tons. One of the main challenges in the production of these vehicles is the uncertainty in demand and an unreliable supply chain due to the specialization of electronic components. The variability and unpredictability of demand, along with the globalization of supply, complicate the scenario. The implementation of a DDAE system implies an innovative change in SAPA’s production and organization, encompassing the supply chain, logistics, manufacturing, and assembly, as well as a high level of plant digitalization.