The automotive exterior lighting systems have seen many significant advances, since the early days of oil lanterns used on road vehicles. A variety of lighting systems are now available, and incandescent bulbs are no longer the only option available for the automakers. Advances in light source technologies are now allowing safer, more cost efficient and greater light generation than ever before. New technologies are now set to propel automotive lighting to the forefront of automotive technology. Technologies such as high-intensity discharge (HID or xenon), adaptive front lighting (AFL) systems and light-emitting diode (LED) systems enhance safety and offer comfort and convenience for the drivers and occupants.