Bought new in 2002. I use my ML55 for towing, luxury driving, shopping, delivery, anything you can think off and have so far driven 175000 km trouble free. At times I drive it hard and I just love it, It definitely is a keeper. Engine is like a sewing machine. never a wrong beat.
My 89LC was mint & incredible off- road, but was severely underpowered, handled like a ship, fatiguing, had no safety features, and got 10mpg, but I still loved it for what it was when I sold it after 9yrs. The ML55AMG's engine has an exceptional powerband, a fantastic interior, handles like a sports sedan, is extremely comfortable, has all the gadgets, can consistently get 15MPG (combined) if I don't "floor it" constantly, 18MPG on long trips, and is incredible fun. The cup holders are too flimsy, its has limited cargo space, and it has too much wind noise, but short of the Kawa ZX11 and 69 BMW 2002 I once owned, I've never loved a vehicle nearly as much