BMW M340i xDrive Sedan MPG by year — every rating on record
The BMW M340i xDrive Sedan has a combined EPA fuel economy rating for 5 model years, from 2022 to 2026. Across those years its best rated version returned 29 mpg (2025) and its thirstiest returned 26 mpg (2022). The EPA record holds 5 configurations for this nameplate, most recently a Compact Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2022 | 1 | 26 mpg | 26 mpg | #51 of 73 (31th pct) | All-Wheel Drive | Premium | Compact Cars |
| 2023 | 1 | 26 mpg | 26 mpg | #47 of 72 (35th pct) | All-Wheel Drive | Premium | Compact Cars |
| 2024 | 1 | 26 mpg | 26 mpg | #53 of 75 (30th pct) | All-Wheel Drive | Premium | Compact Cars |
| 2025 | 1 | 29 mpg | 29 mpg | #58 of 85 (32th pct) | All-Wheel Drive | Premium | Compact Cars |
| 2026 | 1 | 29 mpg | 29 mpg | #61 of 79 (23th pct) | All-Wheel Drive | Premium | Compact Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The BMW M340i xDrive Sedan placed highest in 2023 at #47 of 72, and lowest in 2026 at #61 of 79. It spent 0 of its 5 ranked years in the top half of its class.
Every configuration on record
All 5 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI & PFI; Mild Hybrid, turbocharged, Hybrid, start-stop | 26 | 33 | 29 | 396.6 | 10.3 | $2,650 | 304 | 6/10 |
| 2025 | 3.0L 4-cyl All-Wheel Drive Automatic (S8) Premium | SIDI & PFI; Mild Hybrid, turbocharged, Hybrid, start-stop | 26 | 33 | 29 | 396.6 | 10.3 | $2,650 | 304 | 6/10 |
| 2024 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 23 | 31 | 26 | 442.3 | 11.4 | $3,000 | 341 | 5/10 |
| 2023 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 23 | 32 | 26 | 442.3 | 11.4 | $3,000 | 339 | 5/10 |
| 2022 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 23 | 32 | 26 | 442.3 | 11.4 | $3,000 | 337 | 5/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 1 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2024 → 2025 | 26 → 29 mpg | +3 mpg | 397 gal |
What M340i xDrive Sedan fuel costs over a year
At the EPA's 11,500 miles a year, the 2026 BMW M340i xDrive Sedan burns 397 to 397 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,190 | $1,190 | $0 |
| $3.50/gal | $1,388 | $1,388 | $0 |
| $4.00/gal | $1,586 | $1,586 | $0 |
EPA’s own estimate for the 2026 model year is $2,650 to $2,650 a year in fuel, or $2,000 more than the average new vehicle over five years.
How it compares with other Compact Cars
Across the 498 nameplates EPA classifies as Compact Cars, the median best combined rating is 26 mpg. At 29 mpg the BMW M340i xDrive Sedan is 3 mpg better the median, which is worth about $160 a year at $3.50 a gallon.
- All Compact Cars rankings — every nameplate in the class, best to worst.
Other BMW nameplates
Every BMW model compared → — all nameplates ranked by best combined rating, with what each one costs a year.