This awesome story is brought to us by PopularMechanics.com. You heard right…LASER HEADLIGHTS! Who wouldn’t want that?! But, how do they work, and what does this mean in actual use? At the 2014 International Consumer Electronics Show, Audi announced that laser-based lights will make it into production cars. And Audi’s 2014 R18 race car, which will compete at the 24 Hours of LeMans, will use six laser diodes in addition to its banks of LED lights. How do you turn a laser beam into something resembling a headlight?