2020 BMW 3 Series
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2020 BMW 3 Series is sold in the U.S. with gasoline power. The EPA lists 2 configurations for this model year, with combined economy from 28 to 30 MPG and an estimated annual fuel cost of $2,650 to $2,850 at 15,000 miles.
Key numbers
| Model year | 2020 |
|---|---|
| Vehicle class | Compact Cars |
| Fuel type(s) | Gasoline |
| Combined economy | 28-30 MPG |
| Best / worst combined | 30 / 28 MPG |
| Annual fuel cost | $2,650-$2,850 |
| Tailpipe CO₂ | 299-313 g/mi |
| EPA smog rating | 7-7 / 10 |
What it costs to fuel
Across its configurations, the 2020 3 Series costs about $2,650 to $2,850 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $2,750. Over five years that is about $13,750 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.
Relative to an average new vehicle, this 3 Series configuration spends about $1,750 more on fuel over five years.
For context, the average combined economy of compact cars in this dataset is about 29 MPG. The 3 Series sits roughly 0 MPG above that mark at its midpoint, making it more efficient than average for its EPA class.
Configurations and fuel economy
| Version | Engine | Drive | Trans | Fuel | Combined | Annual fuel |
|---|---|---|---|---|---|---|
| 330i | 2.0L 4-cyl turbo | Rear-Wheel | Automatic | Gasoline | 30 MPG | $2,650 |
| 330i xDrive | 2.0L 4-cyl turbo | All-Wheel | Automatic | Gasoline | 28 MPG | $2,850 |
Emissions, safety and size
The 2020 3 Series records tailpipe CO₂ of 299-313 g/mi, an EPA smog rating of 7-7 out of 10. The EPA classifies it as compact cars.
Compare this car
Open the comparison tool to line this 2020 3 Series up against any other vehicle in the database, or jump to other years and trims from the 2020 BMW 3 Series overview.
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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.