BMW 550i
20 MPG The 2016 BMW 550i is EPA-rated at 20 MPG combined (17 city / 25 highway). Over 15,000 miles a year that is about 750 gallons, $2400 a year in fuel, or $0.160 per mile at $3.20/gal.
Across its full 2006–2016 run it averages 18.4 MPG, improving by 3.3 MPG over 11 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 | $0.125 | $1250 | $1875 | $2500 |
| $3.00/gal | $0.150 | $1500 | $2250 | $3000 |
| $3.20/gal | $0.160 | $1600 | $2400 | $3200 |
| $3.50/gal | $0.175 | $1750 | $2625 | $3500 |
| $4.00/gal | $0.200 | $2000 | $3000 | $4000 |
| $4.50/gal | $0.225 | $2250 | $3375 | $4500 |
| $5.00/gal | $0.250 | $2500 | $3750 | $5000 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2016 | 20 MPG | 17 | 25 | $3850 | 453 | 1 |
| 2015 | 20 MPG | 17 | 25 | $3850 | 439 | 1 |
| 2014 | 20 MPG | 17 | 25 | $3850 | 456 | 1 |
| 2013 | 18.5 MPG | 16 | 23.5 | $4200 | 482 | 2 |
| 2012 | 17.5 MPG | 15 | 22.5 | $4425 | 508 | 2 |
| 2011 | 18.5 MPG | 16 | 23.5 | $4200 | 484 | 2 |
| 2010 | 18 MPG | 15 | 22.5 | $4300 | 494 | 2 |
| 2009 | 18 MPG | 15 | 22.5 | $4300 | 494 | 2 |
| 2008 | 18 MPG | 15 | 22.5 | $4300 | 494 | 2 |
| 2007 | 17.3 MPG | 14.7 | 21.7 | $4467 | 514 | 3 |
| 2006 | 16.7 MPG | 14.3 | 21.3 | $4633 | 535 | 3 |
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 261 midsize cars models tracked here, the BMW 550i ranks 188 on current figures, against a class average of 27.2 MPG.
Closest more-efficient alternatives in the same class: Volvo 850 (20.3), Acura TL 4WD (20.5), Daewoo Leganza (20.5), Lexus GS 300/GS 430 (20.5), Acura TL (20.7).
Tailpipe CO₂ is rated at 453 grams per mile, which works out to roughly 6.8 tonnes a year at 15,000 miles.
Questions
What MPG does the BMW 550i get?
The 2016 BMW 550i is rated at 20 MPG combined by the EPA — 17 city and 25 highway. Across all 11 model years in the database it averages 18.4 MPG, ranging from 16 to 20 depending on year and trim.
How much does a BMW 550i cost in fuel per year?
At 20 MPG and 15,000 miles a year, it burns about 750 gallons — roughly $2400 a year with fuel at $3.20 a gallon, or $0.160 per mile. The EPA's own published annual figure for the 2016 model is $3850.
Has the BMW 550i become more efficient over time?
Yes. It has gone from 16.7 MPG in 2006 to 20 in 2016 — an improvement of 3.3 MPG, or 20% across 11 model years.
Is the BMW 550i efficient for its class?
It ranks 188 of 261 in the Midsize Cars class on current figures, against a class average of 27.2 MPG. That is 7.2 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.