Brian: I'm not aware of a unit in the works for an E38. However, 2point5, the makers of spec.dock, are in Atlanta and may be interested in making one for you free in exchange for your vehicle. Contact them at
www.2point5.com.
Jay: This spec.dock is a dock only - it does not integrate the iPod with the vehicle, so you will need to purchase with the DICE kit. The spec.dock is only $129.95 with the DICE kit.