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The Benz Patent Motorwagen was the first automobile with a practical four-stroke one-cylinder engine and a carriage-like three-wheeler with tubular framework. It incorporated some essential elements that would characterize the modern vehicles. This paper presents the design investigation with the calculations and modelings for simulation of driveline, frame and suspension spring in consideration of vehicle dynamics. As a result, it would be uncomfortable for a long traveling and unstable for the steering manoeuverability, though the Motorwagen was designed as being stiff for the driving conditions in those days.