A little help for a potential W221 buyer. 2011-2013 years.
Pump/valves, etc whole 'nother story...
Bottom line, simple is better
With that said, you could probably find an S550 that was made with the P3 package and get most of the options the S600 has.
From what you mentioned in your post, I think I would recommend an S550 to you as they are certainly not a slouch and are wonderful vehicles. The S600 maintenance would likely be expensive long term as it has 24 spark plugs, etc.
As far as Mercedes' naming nomenclature, it has been changed in recent years. Previous years the three digit number notated the displacement in liters with a "0" tacked on the end. For whatever reason they have steered away from that and now the number represents how the vehicle "fits in" with the product line and cost.
The S600 is actually a 5.5L V12 biturbo and the S65 is a 6.0L biturbo.
I would continue your search and get the options that you want. I am sure you can find the right car for you. I would have been rather frustrated if I purchased one of the first S550s that I test drove overnight as it did not have the dynamic drive seats, and was missing several other things.
FWIW I get about 22-23mpg on the highway driving very conservatively with the V12 S600.
Last edited by killawatt; Feb 5, 2019 at 12:13 AM.




!!!!!!!!!!!! But the ABC can be a costly nightmare to maintain !!!!!!!!!!! It can also get you stranded. I don't know about the V8 turbos reliability yet as the cars are relatively new, but the V12 turbos come with problems like coolant seals leak (over $6k engine out labor cost at the dealer etc).
If you are very green and want to show it off, buy S400 (or just go straight to Tesla, as most people will know nothing about S400 being a mild hybrid :-)
If you want the best, and don't mind spending several thousands dollars on repairs once in a while (or you have the Star system and don't feel like changing a suspension strut by yourself is a big deal) get a car with ABC!
Last edited by George993; Feb 11, 2019 at 10:47 AM.















