2021 head-to-head · Compact Car
2021 Audi A4 Hybrid vs BMW 3 Series
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2021 BMW 3 Series is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $1,975 a year to fuel (30 MPG), versus $2,116 for the 2021 Audi A4 Hybrid (28 MPG). That's roughly $141 a year, or about $705 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Audi A4 Hybrid
- BMW 3 Series
Side by side
| Audi A4 Hybrid | BMW 3 Series | |
|---|---|---|
| $2,116 | Your annual fuel cost | $1,975 |
| 28 MPG | Combined efficiency | 30 MPG |
| 25 MPG | City | 26 MPG |
| 34 MPG | Highway | 36 MPG |
| 92 cu ft | Passenger volume | 94 cu ft |
| 12 cu ft | Cargo volume | 13 cu ft |
| 311 g/mi | Tailpipe CO₂ (g/mi) | 298 g/mi |
| 6/10 | EPA fuel economy score | 6/10 |
| 6/10 | EPA greenhouse gas score | 6/10 |
| Hybrid | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 2.0L 4-cyl turbo |
| 7-speed dual-clutch | Transmission | 8-speed automatic |
| AWD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Audi A4 Hybrid vs BMW 3 Series across model years
- Audi A4 Hybrid
- BMW 3 Series
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the BMW 3 Series has more cargo space (13 vs. 12 cu ft).
Among 37 2021 compact cars, the Audi A4 Hybrid ranks 22nd and the BMW 3 Series 20th for lowest fuel cost.
The powertrains differ: the Audi A4 Hybrid is a full hybrid, while the BMW 3 Series is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2021 Audi A4 Hybrid or the 2021 BMW 3 Series?
Measured by cost to drive, the BMW 3 Series. The Audi A4 Hybrid is rated 28 MPG combined and the BMW 3 Series 30 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Audi A4 Hybrid vs. the BMW 3 Series per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,116 for the Audi A4 Hybrid and $1,975 for the BMW 3 Series.
Which has more cargo space?
The BMW 3 Series, with 13 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
Audi A4 Hybrid vs BMW 3 Series in other years
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