Never a problem in 4 years. Garage kept year round, rarely used in winter.Twice a year detailing - looks like new. Had windshield replaced, that's about it. Also has a facia shield on the lights, hood facing, etc - which is imperceptibel but guarantees against cracks, knicks etc.
This is a 740 IL with a premium sound system and navigation - they are both beautiful and flawless and the cabin is extremely spacious and QUIET. The rumble of the engine is incredible as you move on the highway. Perfection
The phones need to be updated but bmw will not do it ( i guess they want you to buy the new gizmo version). While the system works well with voice integration etc. - when out of the car you really don't want a 4 year old motorola startac.