I am on the sideline about my 01' E53 since it looks kinda dated when I compare it side by side to the newer SUVs (M class, Q7, MDX and the facelifted E53). The stress on those up and coming repair and maintenance items (transmission, water pump, suspension, freezing door locks, timing belts, brakes, windows and etc.) has also taken away the fun out of owning the X5. When I add up the car depreciation ($8K) and all the repair and maintenance costs for the next three years, it can be as high as $12-18K.

My wife is now thinking to replaced MY X5 with either the new C-class or an E60 (5-series). Both are nice but I am leaning toward the 5-series.