someone can confirm this, i believe that was the year of the new idrive system?
i have an 09 and a 12, not sure when it happened in there haha. if so, id buy the 2010 based solely on that.

__________________
01 X5 3.0i (gone)
04 X5 4.8is (gone)
06 X5 4.4i (gone)
09 X5 35d (current)
12 X5 35d (current)