Porsche built a set of carbon fiber wheels that cost nearly $18,000.

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So why are they so expensive? In short, because they use an industry-first technology.

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The wheel is made in two separate stages -- the surrounding rim and the center face.

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The center face comprises about 200 individual elements of carbon fiber fabric.

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The rim is made using this ridiculous braiding machine.

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As the name suggests, it braids the carbon fiber together instead of using more traditional resin impregnation.

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The final result is denser and creates less waste.

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After the rim and wheel are formed, they're braided together.

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After the wheel is assembled, it's soaked with resin and cured in high heat at high pressures.

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The final step involves installing the center-lock mechanism and coating the whole thing in a clear lacquer.

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They're only available on the 911 Turbo S Exclusive Series, and Porsche's only building 500 of these $265,000 supercars.

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