Car body parts are, among other targets, designed to fulfill requirements of high performance and lightweight construction. New technologies, such as a die casting of hybrid materials, e.g. a combination of steel and aluminum, enable further enhancement of lightweight construction and therefore are able to reduce consumptions during the car usage phase. This paper presents a simplified life cycle assessment of a car body part consisting of steel and aluminum die cast in a process chain. The

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... e of the examination is from cradle-to-grave and includes several loops for both materials used.