A friend owns a debadged black e63 estate with dog guard (and dogs). The coolest car to lose the badges on, in my opinion. You are left with a somber E estate (but with 4 pipes and near Ferrari performance).
Awesome bit of kit OP, my old man recently bit the bullet on an E55 estate after seeing how cheap they are, fuel consumption is pretty much the same as has been stated for E63s. Seats with the active bolsters are cool, yet to use the extra seats though!