This paper presents the evaluation of a model-based methodology for automotive products development. The methodology intents to create a flexible environment supporting successive phases of the development life-cycle, from requirements management until system design. A special effort is made on the requirements formalism (and their traceability) and the architecture aspects as they are strong expectations from automotive industry. The evaluation will be able to successfully focus on the process aspects. An automotive case study, an Embedded Electronic Body Controller (EEBC), illustrates the proposed methodology. His efficiency and the quality of the process will be measured regarding some goals defined about time consuming, integration of safety artefacts, tool support, interoperability and limitation of manual activities.