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FlexRay is an emerging communication technology used within Automotive In-Vehicle networking applications. However consideration of environmental variations, as well as device and overall system tolerances make development of a robust FlexRay network a daunting task. Even if the hardware prototype was available it may not be practical nor possible, to test and measure all the possible variations of network performance over this large multidimensional parameter space. But if simulation via a virtual hardware prototype accurately captured the FlexRay physical layer implementation concept, worst-case scenarios and corner cases could be efficiently investigated in face of any random or user selected combination of device and system variations. For simulation to be a viable option, the models for all the network components need to be available.