BMW · Subcompact cars · Electric
BMW i3 Electric: MPG and annual fuel cost, 2021
The BMW i3 Electric was last rated in the data for model year 2021, at 113 MPGe combined, the most efficient of the 5 subcompact cars rated that year.
- 113MPGe combined1st of 5 in class
- $650a year in fuel1st of 5 in class
- 0g/mile CO2
Where it stands
The subcompact cars rated for 2021 run from 15 to 113 MPGe, with a median of 26 MPGe.
In its class, just behind it is the BMW i3 Plug-in hybrid at 31 MPG.
Electric models use no fuel and have no tailpipe CO2. Efficiency is given in MPGe, the miles driven on 33.7 kilowatt-hours of electricity, which is the energy in one gallon of gasoline. The annual cost is electricity at $0.15 per kWh.
Fuel cost and CO2
At 15,000 miles a year with 55% of them in the city, with electricity at $0.15 per kWh, the annual fuel bill of the most efficient version is about $650. That is $2,500 less than the subcompact cars median of $3,150.
It has no tailpipe emissions, so the CO2 column is zero; the emissions from making the electricity are not part of this figure.
Rated versions
The city rating of 124 is 22 above the highway rating of 102. 2 versions are rated for 2021. All of them share the same combined rating of 113 MPGe.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile | Electric range |
|---|---|---|---|---|---|---|
| i3: electric motor, Automatic (A1), RWD | 113 | 124 | 102 | $650 | 0 | 153 |
| i3s: electric motor, Automatic (A1), RWD | 113 | 124 | 102 | $650 | 0 | 153 |
Year by year
The BMW i3 Electric is in the data for 3 of the 8 model years from 2019 to 2026. The headline rating did not move between 2019 and 2021: 113 MPGe both times.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2021 | 2 | 113 | 113 | $650 | 0 | 26 |
| 2020 | 2 | 113 | 113 | $650 | 0 | 26 |
| 2019 | 2 | 113 | 113 | $650 | 0 | 25 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| BMW i3 Plug-in hybrid | Plug-in hybrid | 31 | $2,650 | 2021 |
| Karma GS-6 | Plug-in hybrid | 26 | $3,150 | 2021 |
| Audi TTS | Gasoline | 25 | $3,300 | 2021 |
| Roush Performance Mustang | Gasoline | 15 | $5,500 | 2021 |
Compare and rank
Rankings: Subcompact cars.
Data: US EPA and DOE, as prepared in methods and data.