Good question. When I was researching purchasing my E70, I came across that color every so often and saw it listed as many different colors such as: Chocolate (obviously wrong), saddle, etc.

I could not find the color on any E70 brochures and figured it was an "individual" or special order color. Anyway, I love it but could not find that leather color along with a fully optioned X5.

Also, it seams Truffle Brown is a E53 color that I have never seen on an E70.