Okay, you know that your car has some carbon fiber parts (or, if you drive a Koenigsegg One:1, your whole car is pretty much carbon fiber), and you want to add more carbon fiber to your car, but why? Well, it turns out that Carbon fiber–reinforced polymer (carbon fiber) is the perfect material for many parts of your exotic car. Carbon fiber is made of of thin strands of carbon (thinner than a human hair). The strands are twisted together into strands, then woven into a mat that can be laid over a mold – then covered with a resin, to hold it’s shape.