 We have owned this car for about 60,000 miles, and had an extended warranty through last year.  This car has been driven through city and country, with many miles off-road locating petroglyph and Indian ruin sites throughout the Southwestern United States.  This is our third Mercedes and we have driven them an aggregate of over 250K miles, so I am somewhat biased toward the three pointed star.  All of the suggested service was performed and the additional repairs required have totaled less than $1,000 which included the new platinum plugs at 100K miles.  I would buy another one without a second thought.