The ability to provide a tool integrated environment for quick exploration and optimization of system architecture design alternatives is of paramount importance to the automotive industry. An integrated analysis environment can help reduce development and production costs as well as production time to the market. Given a large number of design alternatives, engineers cannot evaluate them manually due to time constraints. Thus a flexible and scalable tool that helps engineers to automatically explore the design space and optimally select a design meeting the design objectives and constraints is a key for succeeding in this area. This paper discusses lessons learned through hands-on experiences with an existing commercial tool and provides in-depth insights of the development process and complexities.