Against 458 other V6 cars rated 2006–2008, the 328xi sits right on their 19.3 mpg average.
Every BMW 328xi engine, compared
The BMW 328xi was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 3L 6-cyl | 17 / 25 | 2007–2008 | $1,920 |
What that actually costs
Against its rivals in the same model years, the Toyota Corolla gets 30.7 mpg, the Ford Focus 27.7 mpg and the Nissan Versa 29 mpg, next to 20 mpg for the 2008 328xi. The 328xi costs the most of them to run: $669 a year more than the Toyota Corolla.
| Measure | Value |
|---|---|
| Cost per mile (2008) | $0.160 |
| Fuel per year | $1,920 |
| Fuel over five years | $9,600 |
| Against other V6 cars, 2006–2008 | −$70 a year |
| EPA's own estimate | $3,850 a year |
City or highway — who is this car for
The 2008 BMW 328xi gives up 8 mpg in town: 25 on the highway against 17 in the city, $723 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2008) | 17 mpg | $2,259 a year if you only drive in town |
| Highway | 25 mpg | $1,536 a year if you mostly commute |
| Gap | +8 mpg (47%) | Wide — this car dislikes traffic |
How the 328xi changed over the years
Combined figure across the 2 model years the 328xi was rated in, all of them at 20 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2008 | 17 / 25 | 1 | $1,920 | |
| 2007 | 17 / 25 | 1 | $1,920 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 2 EPA ratings of the BMW 328xi — 1 engine across 2007–2008. 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 $3,850. Full method.
Frequently asked questions
What mpg does the 2008 BMW 328xi get?
20 mpg combined, 17 city and 25 highway, per EPA. Across every year since 2007 the 328xi has averaged 20 mpg.
Is the 2008 328xi more efficient than the 2007?
About the same: 20 against 20 mpg combined.
Does the 328xi get better gas mileage than the Toyota Corolla?
No: 20 mpg for the 2008 328xi against 30.7 for the 2009 Toyota Corolla, about $669 a year more to run.
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