 This is one of the best handling SUVs (or SAV according to BMW) I've driven, equalled only by the new MDX.  But what differentiates the X5 from the MDX are the tangible and intangible qualities of a BMW (handling, quiet cabin, solid build, "growl" of the engine, great styling and the looks you get on the street).  We loaded the car up with lots of toys - let's hope it's as reliable as their airtight 4-yr maintenance program.  The only areas of improvement are the unnecessarily complex iDrive and limited legroom in the 3rd row.