its not an issue of which is newer, but of design as they are different.
the white tabs ending in 1680 are $7USD (works out to be about $11 CAD at todays exchange) as opposed to the $1 black clip (ending in 4781).
Calgary BMW is selling those white clips (part ending in 1680) at $18 CAD and the black clips (which are same as front windows, ending in part number 4781) for $4 CAD.
holy crap.
I wont be buying till I have the door pannels off I guess.

__________________
I swear, my cars are like a girlfriend.
Sometimes its a rough ride, sometimes its smooth motorin'.
Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves.
BUT at the end of the day, she loves it when I am inside her.

_______________________
'91 850i
'05 X5 4.4i
'09 Clubman S