A Growing Trend in Car Design Allows Drivers to Customize Lighting Car design has come a long ways from Detroit’s chalkboard and clay models.  It's now a high tech process that involves every area of design, including the lighting. As 2010 models roll off the production line, manufacturers know consumers want the most for their money. Personalizing cars is part of a growing trend that has made lighting an important element in car design. The ability to customize lighting allows drivers to make their vehicle their own, from headlights to tail lights and everything in between. With the latest LED technology, interior and exterior lighting color can be changed from morning to night, from one day to the next or workday to weekend, depending on the driver's mood. This new lighting is also crisper and more saturated, making blues bluer and giving an added aesthetic appeal to the overall look of the car. Produced for Siemens