The graphic is intended to show a typical European passenger vehicle's value chain. However, the graphic includes a lot of numbers and colors that are not easily understandable. The text explains that three parts of the value chain are presented (the raw material production, component manufacture, and car manufacture) but the graphic does not clearly indicate them. The color scheme is not clear, like why green is used for manufacturers and what the red arrows indicate. This graphic could be improved by simplifying, then adding the numbers in a table afterwards.
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Metabolism of Cities