Over the last couple of years I've seen LED's turning up in more and more places. There's LED Christmas lights, I've seen LED flashlights that are surprisingly bright and even some situations where people are using LED lighting systems as the primary lights in their homes. Now they're turning up in another spot I haven't expected, led tail lights.
Not only do these tail lights have the advantage of cool, low power operation but they're also customized. Designed to maximize the appearance of the car they're on. You can get 'em for most makes and models of vehicles and they've got a distinctly cool look to 'em. Definitely something worth checking out if you want to max the cool in your car's look.