hi,
my friend works at a bmw dealer in the uk..
there is no facelift x3 all they have done is brought out the "msport" model (this is now the 2006 model in the usa) which has fully color coded bumpers, which are also styled different to the se and sport models.
The x3 se and x3 sport are still current models and they have the black bumpers you refer to... The x3's are all the same looks wise apart from version of alloy wheel you choose.
unless you choose to have one of the two bmw aerokits fitted to ya x3...
cheers all,