Fit and finish is top notch. Handling and comfort are exceptional. The split screen LCD used for iDrive and NAV is bright, wide-screen format, and of high resolution. The iDrive is fine once you get used to it.
LCD & NAV display, MP3 capabilities using both CD and NAV DVD drives, parking distance sensors, but most of all the comfort and ride.
Two programmable buttons on the steering wheel are nice but would add one or two more. Larger center console storage compartment. Separate DVD drive from DVD NAV drive would allow playing MP3s off DVD while still using the NAV. Currently, you must eject NAV DVD to play MP3s stored on DVD-R