S211 W211 facelift differences

[Niqpw]

Hope someone can advise! Is the rear bumper the same on the S211 and the W211? Is the rear bumper the same on facelift and pre-facelift? Would I need Avantgarde to match the rest of the car?

Sorry for all the questions but there are a few permutations. Basically I'd like to replace the cracked one on my facelift S211 Avantgarde with maybe a used one!

Thanks