My dealer has notified me that BMW will be changing up its models for the 2007 production year.
The 325i & 525i (mid-2007 model) Sedan will now be known as the 328i, 328xi, 328i Coupe and 328xi Coupe; the 5er will be 528i and 528xi.
The 330i and 330xi will be the 335i Sedan and 335xi (maybe) along with the coupe but no xi model, the 530i will be the 535i and 535xi (possibly).
So basically the engines are getting much bigger but he doesn't know whether or not the twin-turbo will have the all-wheel drive option (apparently nobody does). The 3er will be in dealerships late-Sept -early-Oct, and the 5er should be available next spring, the 328i Coupe is already at some dealerships (the good ones).
The pricing is increasing moderately, but unnoticeably—I drove the 335i Coupe about a month ago, fast infact faster to 60 than the 650i! But not as efficient you’d get anywhere from 25-29 MPGs on the highway (a far cry from the 30-32 MPGs from the 330i).
It looks like BMW having a 3.0 in the 325i makes sense now. They were planning on changing all the engines.