Against 344 other Hybrid cars rated 2024–2026, the 330i beats their 28 mpg average by 3 mpg, about $132 a year. Averaged over the years each was sold, the most economical engine since 2001, the 2L 4-cyl Hybrid (2025–2026), does 31 mpg and the thirstiest, the 3L 6-cyl (2001–2006), 21.3: $564 a year apart.
Every BMW 330i engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2L 4-cyl Hybrid | 28 / 35 | 2025–2026 | $1,239 | |
| 2L 4-cyl | 25.1 / 35 | 2017–2024 | $1,324 | |
| 3L 6-cyl | 18 / 27 | 2001–2006 | $1,803 |
What that actually costs
Against its rivals in the same model years, the Toyota Corolla gets 42.5 mpg, the Lexus IS 22.5 mpg and the Acura TLX 23 mpg, next to 31 mpg for the 2026 330i.
| Measure | Value |
|---|---|
| Cost per mile (2026) | $0.103 |
| Fuel per year | $1,239 |
| Fuel over five years | $6,195 |
| Against other Hybrid cars, 2024–2026 | −$132 a year |
| EPA's own estimate | $2,988 a year |
City or highway — who is this car for
The 2026 BMW 330i gives up 7 mpg in town: 35 on the highway against 28 in the city, $274 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2026) | 28 mpg | $1,371 a year if you only drive in town |
| Highway | 35 mpg | $1,097 a year if you mostly commute |
| Gap | +7 mpg (25%) | Typical for its type |
How the 330i changed over the years
The 330i peaked in 2026 at 31 mpg (28 city, 35 highway) and was at its thirstiest in 2006 at 21 — 10 mpg apart, or $590 a year in fuel between buying one year and the other. The biggest single-year change came in 2019: 27 to 30 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 28 / 35 | 1 | $1,239 | |
| 2025 | 28 / 35 | 1 | $1,239 | |
| 2024 | 25 / 34 | 1 | $1,324 | |
| 2023 | 25 / 34 | 1 | $1,324 | |
| 2022 | 26 / 36 | 1 | $1,280 | |
| 2021 | 26 / 36 | 1 | $1,280 | |
| 2020 | 26 / 36 | 1 | $1,280 | |
| 2019 | 26 / 36 | 1 | $1,280 | |
| 2018 | 24 / 34 | 1 | $1,422 | |
| 2017 | 23 / 34 | 1 | $1,422 | |
| 2006 | 18 / 27 | 1 | $1,829 | |
| 2005 | 18 / 27 | 1 | $1,829 | |
| 2004 | 18 / 27 | 1 | $1,829 | |
| 2003 | 18 / 27 | 1 | $1,745 | |
| 2002 | 18 / 27 | 1 | $1,745 | |
| 2001 | 18 / 27 | 1 | $1,829 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 16 EPA ratings of the BMW 330i — 3 engines across 2001–2026. 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 $2,988. Full method.
Frequently asked questions
What mpg does the 2026 BMW 330i get?
31 mpg combined, 28 city and 35 highway, per EPA. Across every year since 2001 the 330i has averaged 26.4 mpg.
Is the 2026 330i more efficient than the 2025?
About the same: 31 against 31 mpg combined.
Which 330i year has the best gas mileage?
The 2026, at 31 mpg combined (28 city, 35 highway), which is also the latest model year we hold.
Does the 330i get better gas mileage than the Toyota Corolla?
No: 31 mpg for the 2026 330i against 42.5 for the 2026 Toyota Corolla, about $335 a year more to run.
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