Back in the rear-engine/air-cooled Golden Age of Volkswagen, since they kept with the same basic models so long, they amused themselves with special editions. One of these, the GT Beetle, I love for many reasons, but maybe most so because of one line in the brochure. About taillights.
Taillights are a great part of a car to customize and play with. They're highly visible, distinctive, and everyone has to have them, anyway. I came up with an idea on how to make some extremely dynamic light units for not much more than the cost of some tacky, over-chromed aftermarket ones.