In 2005, the Lotus Elise sales brochure lists as one of the color choices "Bordeaux Red". On the original window sticker for my car, it shows an extra charge for "metallic paint". I have seen the color referred to as simply "Bordeaux Red", as well as "Bordeaux Red Metallic". But what I see mostly on this forum is the term "Bordeaux Red Pearl". So my question to the knowledge base out there is, where does the term "Pearl" come from?