My x5 has 75k on it. I use it for working in 7 counties in norcal. With the exception of a sometimes humorous glitch with the speaker telephone, it has not had one single repair except consumables. The engine and transmission have performed flawlessly, and on the rare occasion that I have had it in really serious snow, it has been a panzer tank. This is my 4th BMW, and I have had two Saabs, two Mercedes, a Volvo, a Trooper, and a Grand Cherokee--not counting beaters when I was a youngster. Nothing is even close. Fuel economy is great when compared to other v8 suvs. The Grand Cherokee was an outhouse on wheels comparatively.