Steve - If you look at the 'build your own' on the BMW NA site you see the same thing.

http://www.bmwusa.com/Standard/Conte...ModelCode=0860

If you look at the interior trim options - when you select the 'dark wood' it looks darker than the 'dark bamboo' on the selector buttons.

Now scroll up to the picture of the car interior and when you switch between the two interior colors the 'dark wood' looks a lot lighter than the 'dark bamboo' - like the light color your described.

Bizarre - looks to me like the 'dark wood' color that they have in the brochure is not accurate/misleading.

Hope it works out for you.