Mercedes-Benz SL63 AMG
19 MPG The 2015 Mercedes-Benz SL63 AMG is EPA-rated at 19 MPG combined (16 city / 25 highway). Over 15,000 miles a year that is about 789 gallons, $2526 a year in fuel, or $0.168 per mile at $3.20/gal.
Across its full 2009–2015 run it averages 16.5 MPG, improving by 5 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 | $0.132 | $1316 | $1974 | $2632 |
| $3.00/gal | $0.158 | $1579 | $2368 | $3158 |
| $3.20/gal | $0.168 | $1684 | $2526 | $3368 |
| $3.50/gal | $0.184 | $1842 | $2763 | $3684 |
| $4.00/gal | $0.211 | $2105 | $3158 | $4211 |
| $4.50/gal | $0.237 | $2368 | $3553 | $4737 |
| $5.00/gal | $0.263 | $2632 | $3947 | $5263 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2015 | 19 MPG | 16 | 25 | $4050 | 468 | 1 |
| 2014 | 19 MPG | 16 | 25 | $4050 | 468 | 1 |
| 2013 | 19 MPG | 16 | 25 | $4050 | 468 | 1 |
| 2012 | 14 MPG | 12 | 19 | $5500 | 635 | 1 |
| 2011 | 14 MPG | 12 | 19 | $5500 | 635 | 1 |
| 2009 | 14 MPG | 12 | 19 | $5500 | 635 | 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 105 two seaters models tracked here, the Mercedes-Benz SL63 AMG ranks 54 on current figures, against a class average of 21.4 MPG.
Closest more-efficient alternatives in the same class: Nissan 350z Roadster (19.5), Aston Martin Vantage V8 (20), BMW Z3 Roadster (20), Mercedes-Benz SL550 (20), Nissan 350z (20).
Tailpipe CO₂ is rated at 468 grams per mile, which works out to roughly 7.0 tonnes a year at 15,000 miles.
Questions
What MPG does the Mercedes-Benz SL63 AMG get?
The 2015 Mercedes-Benz SL63 AMG is rated at 19 MPG combined by the EPA — 16 city and 25 highway. Across all 6 model years in the database it averages 16.5 MPG, ranging from 14 to 19 depending on year and trim.
How much does a Mercedes-Benz SL63 AMG cost in fuel per year?
At 19 MPG and 15,000 miles a year, it burns about 789 gallons — roughly $2526 a year with fuel at $3.20 a gallon, or $0.168 per mile. The EPA's own published annual figure for the 2015 model is $4050.
Has the Mercedes-Benz SL63 AMG become more efficient over time?
Yes. It has gone from 14 MPG in 2009 to 19 in 2015 — an improvement of 5 MPG, or 36% across 6 model years.
Is the Mercedes-Benz SL63 AMG efficient for its class?
It ranks 54 of 105 in the Two Seaters class on current figures, against a class average of 21.4 MPG. That is 2.4 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.