[dbs600]

Thanks xDrive. I've noticed that there's also space to the right of the trunk - under the lid - that just barely fits it; you have to angle and contort it just a bit to get it in. I'll have to give it another try, but I'll have to keep registration and insurance paperwork separate - more accessible within the cabin.

Otherwise, yes, I don't know what it is with German autos, but, all too familiar... it's absolutely impossible to fit the manual of my 1994 S500 in its glove compartment; so, it too goes in the trunk (although, the current S has a tremendous amount of interior cabin storage space!)