Difference between 2006 and 2007 BMW 525i

From Autotrader.com: "Additional equipment is the only thing that distinguishes the 2007 BMW 5 Series from last year's model. Heading up the list is a standard four-year subscription to BMW Assist, a communications system that automatically contacts your BMW dealer when your car needs service, and summons help in the event of a collision. In addition, there's now an auxiliary input jack for MP3 players and optional high-definition radio, which provides CD-quality sound on FM stations that broadcast in HD. Vehicles with the Sport package get a new steering wheel design and 20-way adjustable multicontour front seats. Finally, 5 Series buyers have the option of getting BMW's Night Vision system, which uses a thermal imaging camera to detect obstacles up to 1,000 feet in front of the car." epbrown