A BMW-style tailgate on my estate whereby the glass can be opened separately to the main tailgate.
A BMW-style rear tailagate wiper that only does one pass of the screen on every intermittent wipe instead of the normal two wipes per intermittent wipe.
A BMW-style programmable rear wiper that allows the intermittent wipe time to be set.
Move the rear wiper switch to the steering column (fixed in new E Classes, I think).
BMW-style automatically adjusted seat-belt height adjusters.
... Surely, MB must buy the odd BMW and analyse its good points?
What you really want is a BMW, is what you're trying to say