2023 head-to-head · Subcompact Car
2023 Audi S3 vs BMW i4
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 2.0L 4-cyl turbo · 7-speed dual-clutch · 26 MPG
The 2023 BMW i4 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, it costs about $805 a year to fuel (113 MPGe), versus $2,279 for the 2023 Audi S3 (26 MPG). That's roughly $1,474 a year, or about $7,371 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 S3
- BMW i4
Side by side
| Audi S3 | BMW i4 | |
|---|---|---|
| $2,279 | Your annual fuel cost | $805 |
| 26 MPG | Combined efficiency | 113 MPGe |
| 23 MPG | City | 115 MPGe |
| 32 MPG | Highway | 111 MPGe |
| — | Electricity use (kWh/100 mi) | 29.8 kWh |
| — | Driving range | 256 mi |
| 87 cu ft | Passenger volume | 90 cu ft |
| 8 cu ft | Cargo volume | 10 cu ft |
| 334 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 5/10 | EPA fuel economy score | 10/10 |
| 5/10 | EPA greenhouse gas score | 10/10 |
| — | Charge time at 240V | 8 hrs |
| Gas | Powertrain | Electric |
| Premium gasoline | Fuel | Electricity |
| 2.0L 4-cyl turbo | Engine / motor | Electric motor (250 kW) |
| 7-speed dual-clutch | Transmission | Single-speed |
| 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 S3 vs BMW i4 across model years
- Audi S3
- BMW i4
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 i4 has more passenger space (90 vs. 87 cu ft); the BMW i4 has more cargo space (10 vs. 8 cu ft).
Among 31 2023 subcompact cars, the Audi S3 ranks 13th and the BMW i4 1st for lowest fuel cost.
Because the BMW i4 is fully electric, it has no tailpipe emissions and its running cost depends almost entirely on your electricity rate. Cheap overnight home charging widens its advantage over the Audi S3; relying on DC fast chargers can erase it.
Frequently asked questions
Which is more fuel-efficient, the 2023 Audi S3 or the 2023 BMW i4?
Measured by cost to drive, the BMW i4. The Audi S3 is rated 26 MPG combined and the BMW i4 113 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2023 Audi S3 vs. the BMW i4 per year?
At 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, about $2,279 for the Audi S3 and $805 for the BMW i4.
Which has more cargo space?
The BMW i4, with 10 cu ft of luggage volume versus 8 cu ft (EPA interior volume index).
Audi S3 vs BMW i4 in other years
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