Against 254 other Hybrid cars rated 2025–2027, the M440i beats their 28 mpg average by 2 mpg, about $91 a year. Averaged over the years each was sold, the most economical engine since 2021, the 3L 4-cyl Hybrid (2025), does 30 mpg and the thirstiest, the 3L 6-cyl Hybrid (2021–2027), 28: $91 a year apart.
Every BMW M440i engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 3L 4-cyl Hybrid | 27 / 34 | 2025–2025 | $1,280 | |
| 3L 6-cyl Hybrid | 25 / 32.8 | 2021–2027 | $1,371 |
What that actually costs
Against its rivals in the same model years, the Bentley Continental gets 19 mpg, the Lexus LC 18 mpg and the Audi RS 3 23 mpg, next to 30 mpg for the 2027 M440i. The M440i is the cheapest of them to run: $853 a year less than the Lexus LC.
| Measure | Value |
|---|---|
| Cost per mile (2027) | $0.107 |
| Fuel per year | $1,280 |
| Fuel over five years | $6,400 |
| Against other Hybrid cars, 2025–2027 | −$91 a year |
| EPA's own estimate | $2,721 a year |
City or highway — who is this car for
The 2027 BMW M440i gives up 7 mpg in town: 34 on the highway against 27 in the city, $293 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2027) | 27 mpg | $1,422 a year if you only drive in town |
| Highway | 34 mpg | $1,129 a year if you mostly commute |
| Gap | +7 mpg (26%) | Typical for its type |
How the M440i changed over the years
The M440i peaked in 2027 at 30 mpg (27 city, 34 highway) and was at its thirstiest in 2021 at 26 — 4 mpg apart, or $197 a year in fuel between buying one year and the other. The biggest single-year change came in 2025: 27 to 30 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2027 | 27 / 34 | 1 | $1,280 | |
| 2026 | 27 / 34 | 1 | $1,280 | |
| 2025 | 27 / 34 | 1 | $1,280 | |
| 2024 | 24 / 32 | 1 | $1,422 | |
| 2023 | 24 / 32 | 1 | $1,422 | |
| 2022 | 25 / 34 | 1 | $1,371 | |
| 2021 | 23 / 31 | 1 | $1,477 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 7 EPA ratings of the BMW M440i — 2 engines across 2021–2027. 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 $2,721. Full method.
Frequently asked questions
What mpg does the 2027 BMW M440i get?
30 mpg combined, 27 city and 34 highway, per EPA. Across every year since 2021 the M440i has averaged 28.3 mpg.
Is the 2027 M440i more efficient than the 2026?
About the same: 30 against 30 mpg combined.
Which M440i year has the best gas mileage?
The 2027, at 30 mpg combined (27 city, 34 highway), which is also the latest model year we hold.
Does the M440i get better gas mileage than the Bentley Continental?
Yes: 30 mpg for the 2027 M440i against 19 for the 2026 Bentley Continental, about $741 a year less to run.
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