looking at new cars and the one i really like has xenon headlights. what exactly are the differences between xenons and regular headlights? do they have bulbs that need to be replaced? are they more expensive when they need to be replaced and how often does that occur? how do they work? they look great but just not really sure what they are. thank you


'98.5 Black Ford Contour SE Sport 5-speed. All the SE Sport features with all the 98features that were supposed to be decontented for 98.5 '04 Silver Toyota RAV4 L Auto. Fully loaded.