Carbon fiber is both light and strong. It can be molded into any shape that strikes a designer's fancy. It lightens the load of a vehicle and therefore increases an engine's efficiency, making it a smart choice in today's world. It's also crazy expensive -- and it looks completely bad ass. Car companies are adding optional carbon fiber packages to their sportier cars, like the Lexus RC F, because it looks so cool. Interior, exterior, as a tattoo -- this black-on-black weave screams "I may have four cylinders or I may have 12, but it hardly matters. Why? Because carbon fiber!"