BMW X3 M40i MPG by year — every rating on record
The BMW X3 M40i has a combined EPA fuel economy rating for 7 model years, from 2018 to 2024. Across those years its best rated version returned 23 mpg (2018) and its thirstiest returned 23 mpg (2018). The EPA record holds 7 configurations for this nameplate, most recently a Small Sport Utility Vehicle 4WD.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2018 | 1 | 23 mpg | 23 mpg | #47 of 94 (51th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2019 | 1 | 23 mpg | 23 mpg | #55 of 93 (41th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2020 | 1 | 23 mpg | 23 mpg | #63 of 111 (44th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2021 | 1 | 23 mpg | 23 mpg | #73 of 124 (41th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2022 | 1 | 23 mpg | 23 mpg | #100 of 151 (34th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2023 | 1 | 23 mpg | 23 mpg | #116 of 166 (30th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2024 | 1 | 23 mpg | 23 mpg | #129 of 176 (27th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The BMW X3 M40i placed highest in 2018 at #47 of 94, and lowest in 2024 at #129 of 176. It spent 1 of its 7 ranked years in the top half of its class.
Every configuration on record
All 7 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 21 | 26 | 23 | 500.0 | 12.9 | $3,350 | 378 | 5/10 |
| 2023 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 21 | 26 | 23 | 500.0 | 12.9 | $3,350 | 378 | 5/10 |
| 2022 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 21 | 26 | 23 | 500.0 | 12.9 | $3,350 | 379 | 5/10 |
| 2021 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 21 | 27 | 23 | 500.0 | 12.9 | $3,350 | 379 | 5/10 |
| 2020 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 21 | 27 | 23 | 500.0 | 12.9 | $3,350 | 379 | 5/10 |
| 2019 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 20 | 27 | 23 | 500.0 | 12.9 | $3,350 | 392 | 5/10 |
| 2018 | 3.0L 6-cyl All-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 20 | 27 | 23 | 500.0 | 12.9 | $3,350 | 388 | 5/10 |
What X3 M40i fuel costs over a year
At the EPA's 11,500 miles a year, the 2024 BMW X3 M40i burns 500 to 500 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 | $1,500 | $1,500 | $0 |
| $3.50/gal | $1,750 | $1,750 | $0 |
| $4.00/gal | $2,000 | $2,000 | $0 |
EPA’s own estimate for the 2024 model year is $3,350 to $3,350 a year in fuel, or $5,500 more than the average new vehicle over five years.
How it compares with other Small Sport Utility Vehicle 4WD
Across the 311 nameplates EPA classifies as Small Sport Utility Vehicle 4WD, the median best combined rating is 27 mpg. At 23 mpg the BMW X3 M40i is 4 mpg below the median, which is worth about $259 a year at $3.50 a gallon.
- All Small Sport Utility Vehicle 4WD 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.