In many cases, product families are established on top of a successful pilot product. While this approach provides an option to measure many concrete attributes like performance and memory footprint, adequateness and adaptability of the architecture of the pilot cannot be fully verified. Yet, these properties are crucial business enablers for the whole product family. In this paper, we discuss an architectural assessment of one such seminal system, intended for monitoring electronic subsystems of a mobile machine, which is to be extended to support a wide range of different types of products. This paper shows how well the assessment reveals possible problems and existing flexibilities in assessed system, and this way helps different stakeholders in their further decisions.