I ordered the car 18 months ago with Automatic, Premium Package, Cold Weather Package, Navigation and Parking Assist. It's worth every dime. It looks great, handles like a dream, and has top notch build-quality (very German). Though it is not anywhere near the top in term of horsepower count, power delivery is excellent, making highway passing and merging very easy. Fuel economy is surprisingly good for a car that offers such performance. Unlike many other V6s, real life MPG is pretty close to what is shown on the sticker. The free maintenance program is another nice touch.
Style, build quality, iDrive.
The iDrive can respond faster. The seat belt arm is a nice feature, but can be annoying at times.