BMW · Midsize cars · Plug-in hybrid
BMW M Plug-in hybrid: MPG and annual fuel cost, 2026
In model year 2026 the BMW M Plug-in hybrid is rated at 14 MPG combined, 31st of 31 midsize cars, in the bottom quarter.
- 14MPG combined31st of 31 in class
- $5,850a year in fuel31st of 31 in class
- 264g/mile CO2
Where it stands
The midsize cars rated for 2026 run from 14 to 139 MPG, with a median of 30 MPG.
Among all plug-in hybrid models of the year, regardless of size, it is tied for 28th of 29 plug-in hybrid models, in the bottom quarter.
Within the 23 BMW models rated for 2026 it is tied for 22nd on combined rating; the median of the make's line-up is 28 MPG.
In its class, just ahead of it is the Audi RS Hybrid at 16 MPG.
A plug-in hybrid can run on its battery for a distance and then on fuel. The MPG, fuel cost and CO2 figures on this site are for running on fuel with the battery depleted, so a driver who charges often will use less fuel than shown.
Fuel cost and CO2
At 15,000 miles a year with 55% of them in the city, with premium gasoline at $5.48 per gallon, the annual fuel bill of the most efficient version is about $5,850. That is $3,350 more than the midsize cars median of $2,500.
Tailpipe CO2 is 264 g/mile, 5 g/mile below the midsize cars median of 269.
Rated versions
Its city rating is 12 and its highway rating 19: the highway figure is 7 higher. 2 versions are rated for 2026. The most efficient, M5 Sedan: 4.4 L, 8 cyl hybrid, Automatic (S8), AWD, gets 14 MPG; the least efficient listed, M5 Touring: 4.4 L, 8 cyl hybrid, Automatic (S8), AWD, gets 13 MPG, a gap of 1 MPG. With the file's assumptions that gap is worth about $450 a year in fuel.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile | Electric range |
|---|---|---|---|---|---|---|
| M5 Sedan: 4.4 L, 8 cyl hybrid, Automatic (S8), AWD | 14 | 12 | 19 | $5,850 | 264 | 29 |
| M5 Touring: 4.4 L, 8 cyl hybrid, Automatic (S8), AWD | 13 | 11 | 17 | $6,300 | 304 | 25 |
Year by year
The BMW M Plug-in hybrid is in the data for 2 of the 8 model years from 2019 to 2026. The headline rating did not move between 2025 and 2026: 14 MPG both times.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2026 | 2 | 14 | 13 | $5,850 | 264 | 30 |
| 2025 | 2 | 14 | 13 | $5,850 | 285 | 29 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| Audi RS Hybrid | Hybrid | 16 | $5,150 | 2026 |
| Bentley Flying Spur Plug-in hybrid | Plug-in hybrid | 19 | $4,350 | 2026 |
| Lexus LS | Gasoline | 21 | $3,900 | 2026 |
| Subaru WRX | Gasoline | 22 | $3,750 | 2026 |
| Audi S5 | Gasoline | 23 | $3,550 | 2026 |
Compare and rank
Rankings: Midsize cars, Plug-in hybrid, BMW.
Data: US EPA and DOE, as prepared in methods and data.