2011 MBZ S-550: Your Thoughts Please

[Atazman]

Hi guys......

I have become interested in a 2011, Mercedes S-550 with 9,000 miles.  Please share your thoughts about reliability, and what you think of the car in general.  Any real advantage to finding a 2012 or 2013 S-550 with the turbo engine?

Any comments that would help me understand the pros and cons of the 2011 S-550 are appreciated.

Thanks in advance......