Deceptive MPG estimates for 2011 35i?

[by350]

I purchased my 2011 35i in July 2010 and noticed that BMW seemed reluctant to post any MPG estimates on their Web site. I just happened to be on their Web site today and noticed that it now lists the MPG as "23 mpg hwy". The window sticker in my 2011 35i shows EPA fuel estimates to be 17/25.

I personally haven't seen anything better than 20 MPG on the highway. I feel like BMW has been a bit deceptive on their fuel estimates and now they have switched the estimate from 25 to 23. Is this even allowed? I'm curious to hear what others have to say and what kind of mileage they are getting.