It seems that you were gunning for the 335i, so just wait for the 235i which has at least the same power as the 335i and still falls in your budget..OR get a used 335i.
BTW, the 328i has a cracker of an engine and should not be overlooked just because of the noise at idle. It's not audible when you're inside (and not that bad from the outside too), which is all that matters
