My wife does not like german cars and she grew up in Europe go figure. She was always lexus and now acura driver.That's why I mentioned "ML", not the "S" series, but regardless consider yourself lucky. There's been several horror stories with the S series as well.I will disagree on Mercedes. I have 2010 Mercedes S550 with 270K miles that runs like new only needs new catalytic converters now $$$ other then that only maintenance.
With that luck, how come you didn't go with Merc ML or GL series?