A comprehensive model that combines the necessary aspects of vehicle characteristics, manual control theory, and human sensory and cognitive capabilities (and limitations) is needed to efficiently and effectively guide experiments, and to predict or assess overall driver performance. Such a model would enable Army program managers to rank competing workload configurations and scenarios in proposed vehicles, and to focus resources on the most promising. Ultimately such a model would replace or significantly reduce reliance on the current costly process: multiple hardware iterations of “design-test-fix.” Currently no such comprehensive model exists. This paper discusses a conceptual framework designed to encompass the relationships, conditions and constraints related to direct, indirect and teleoperated modes of driving, and so provides a guide or “road-map” for the construction and creation of a comprehensive driver performance model.