Mercedes-Benz S55 AMG
16 MPG The 2006 Mercedes-Benz S55 AMG is EPA-rated at 16 MPG combined (13 city / 20 highway). Over 15,000 miles a year that is about 938 gallons, $3000 a year in fuel, or $0.200 per mile at $3.20/gal.
Across its full 2001–2006 run it averages 15.8 MPG, falling by 1 MPG over 6 model years.
Running cost at different fuel prices and mileages
The figure everyone actually wants, and the one the EPA does not publish — because it depends on a fuel price no agency will commit to.
| Fuel price | Per mile | 10,000 mi/yr | 15,000 mi/yr | 20,000 mi/yr |
|---|---|---|---|---|
| $2.50/gal | $0.156 | $1563 | $2344 | $3125 |
| $3.00/gal | $0.188 | $1875 | $2813 | $3750 |
| $3.20/gal | $0.200 | $2000 | $3000 | $4000 |
| $3.50/gal | $0.219 | $2188 | $3281 | $4375 |
| $4.00/gal | $0.250 | $2500 | $3750 | $5000 |
| $4.50/gal | $0.281 | $2813 | $4219 | $5625 |
| $5.00/gal | $0.313 | $3125 | $4688 | $6250 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2006 | 16 MPG | 13 | 20 | $4800 | 555 | 1 |
| 2005 | 15 MPG | 13 | 20 | $5150 | 592 | 1 |
| 2004 | 15 MPG | 13 | 19 | $5150 | 592 | 1 |
| 2003 | 15 MPG | 13 | 20 | $5150 | 592 | 1 |
| 2002 | 17 MPG | 14 | 20 | $4550 | 523 | 1 |
| 2001 | 17 MPG | 14 | 20 | $4550 | 523 | 1 |
Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.
How it compares in its class
Among the 149 large cars models tracked here, the Mercedes-Benz S55 AMG ranks 124 on current figures, against a class average of 21.6 MPG.
Closest more-efficient alternatives in the same class: Dodge Charger SRT8 (17), Ford Crown Victoria Police (17), Maserati Quattroporte GTS (17), Mercedes-Benz S500 (17), Porsche Panamera GTS ST (17).
Tailpipe CO₂ is rated at 555 grams per mile, which works out to roughly 8.3 tonnes a year at 15,000 miles.
Questions
What MPG does the Mercedes-Benz S55 AMG get?
The 2006 Mercedes-Benz S55 AMG is rated at 16 MPG combined by the EPA — 13 city and 20 highway. Across all 6 model years in the database it averages 15.8 MPG, ranging from 15 to 17 depending on year and trim.
How much does a Mercedes-Benz S55 AMG cost in fuel per year?
At 16 MPG and 15,000 miles a year, it burns about 938 gallons — roughly $3000 a year with fuel at $3.20 a gallon, or $0.200 per mile. The EPA's own published annual figure for the 2006 model is $4800.
Has the Mercedes-Benz S55 AMG become more efficient over time?
No — it has actually gone backwards, from 17 MPG in 2001 to 16 in 2006. That usually reflects the model growing heavier, more powerful, or moving upmarket rather than the engineering getting worse.
Is the Mercedes-Benz S55 AMG efficient for its class?
It ranks 124 of 149 in the Large Cars class on current figures, against a class average of 21.6 MPG. That is 5.6 worse than typical for the class.
EPA test figures from fueleconomy.gov. Cost per mile and annual fuel spend are computed at a reference price of $3.20 per gallon — use your own price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.