The Bentley Arnage does 11.4 mpg combined (9.6 city, 14.1 highway), which works out to about $3,368 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: 4.4L 8-cyl does 13 mpg while 6.8L 8-cyl does 11.2 — a difference of $475 a year. Against other V8 cars it sits below the average of 16.1 mpg.
Every Bentley Arnage engine, compared
Gas mileage on the Bentley Arnage ranges from 13 down to 11.2 depending on which engine sits under the bonnet — a spread of $475 a year across 3 versions of the same car. Picking the right one often saves more fuel than picking a different car altogether. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 4.4L 8-cyl | 11 / 15 | 1999–1999 | $2,954 | |
| 6.7L 8-cyl | 10 / 14.8 | 2000–2009 | $3,398 | |
| 6.8L 8-cyl | 9.2 / 13.5 | 2001–2006 | $3,429 |
What that actually costs
The Bentley Arnage burns a gallon every 11.4 miles, so 12,000 miles takes about 1053 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.281 |
| Fuel per year | $3,368 |
| Fuel over five years | $16,840 |
| Against other V8 cars | +$983 a year |
| EPA's own estimate | $6,795 a year |
City or highway — who is this car for
The Bentley Arnage gives up 4.5 mpg the moment you leave the motorway — 14.1 out there against 9.6 in town, a 47% drop worth $1,277 a year. A wide gap punishes stop-and-start traffic; a narrow one means the car doesn't care where you drive it.
| Measure | Value | Reading |
|---|---|---|
| City | 9.6 mpg | $4,000 a year if you only drive in town |
| Highway | 14.1 mpg | $2,723 a year if you mostly commute |
| Gap | +4.5 mpg (47%) | Wide — this car dislikes traffic |
How the Arnage changed over the years
The Arnage peaked in 1999 at 13 mpg (11 city, 15 highway) and was at its thirstiest in 2009 at 11 — 2 mpg apart, or $537 a year in fuel between buying one year and the other. The 2009 car does 11. Jumps usually mark a new generation or a new engine; dips often mean a heavier body or added all-wheel drive.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2009 | 10 / 14 | 1 | $3,491 | |
| 2008 | 10 / 15 | 1 | $3,491 | |
| 2007 | 10 / 15 | 1 | $3,491 | |
| 2006 | 9 / 13 | 1 | $3,491 | |
| 2005 | 9 / 13 | 1 | $3,491 | |
| 2004 | 9 / 13 | 1 | $3,491 | |
| 2003 | 9 / 13 | 1 | $3,491 | |
| 2002 | 9 / 14 | 1 | $3,491 | |
| 2001 | 10 / 15 | 1 | $3,200 | |
| 2000 | 10 / 15 | 1 | $3,200 | |
| 1999 | 11 / 15 | 1 | $2,954 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 11 EPA ratings of the Bentley Arnage — 3 engines across 1999–2009. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $6,795. Full method.
Frequently asked questions
What mpg does the Bentley Arnage get?
11.4 mpg combined on average — 9.6 in the city and 14.1 on the highway, per EPA ratings across 1999–2009.
How much does a Bentley Arnage cost in fuel per year?
About $3,368 at 12,000 miles and $3.20 a gallon — roughly $16,840 over five years, or 0.281 dollars a mile.
Which Arnage engine is the most economical?
The 4.4L 8-cyl at 13 mpg, against 11.2 for the 6.8L 8-cyl — a difference of about $475 a year.
Is the Arnage good on fuel compared with similar cars?
Against other V8 cars it sits below the average of 16.1 mpg, computed across 3323 ratings.
Are these real-world Arnage figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the Bentley Arnage is $6,795 against the $3,368 we compute at 12,000 miles. Expect a little worse in practice: the spread between the 13 and 11 mpg versions of this car is smaller than the spread between two drivers of the same one.
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