2026 head-to-head · Compact Car
2026 Audi S e-tron 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.
The 2026 BMW i4 is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity, it costs about $769 a year to fuel (118 MPGe), versus $1,015 for the 2026 Audi S e-tron (90 MPGe). That's roughly $246 a year, or about $1,229 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 S e-tron
- BMW i4
Side by side
| Audi S e-tron | BMW i4 | |
|---|---|---|
| $1,015 | Your annual fuel cost | $769 |
| 90 MPGe | Combined efficiency | 118 MPGe |
| 91 MPGe | City | 121 MPGe |
| 88 MPGe | Highway | 115 MPGe |
| 37.6 kWh | Electricity use (kWh/100 mi) | 28.5 kWh |
| 300 mi | Driving range | 333 mi |
| 91 cu ft | Passenger volume | 90 cu ft |
| 11 cu ft | Cargo volume | 10 cu ft |
| 0 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 9/10 | EPA fuel economy score | 9/10 |
| 10/10 | EPA greenhouse gas score | 10/10 |
| 15.5 hrs | Charge time at 240V | 9 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motors (667 kW) | Engine / motor | Electric motor (250 kW) |
| Single-speed | 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 S e-tron vs BMW i4 across model years
- Audi S e-tron
- 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
The BMW i4 goes farther between stops: about 333 miles on a charge, compared with 300 miles for the Audi S e-tron.
Per EPA interior volume figures, the Audi S e-tron has more cargo space (11 vs. 10 cu ft).
Among 21 2026 compact cars, the Audi S e-tron ranks 6th and the BMW i4 2nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 Audi S e-tron or the 2026 BMW i4?
Measured by cost to drive, the BMW i4. The Audi S e-tron is rated 90 MPGe combined and the BMW i4 118 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 Audi S e-tron vs. the BMW i4 per year?
At 15,000 miles a year with 18¢/kWh electricity, about $1,015 for the Audi S e-tron and $769 for the BMW i4.
Which has more range?
The BMW i4: about 333 miles versus 300 miles.
Which has more cargo space?
The Audi S e-tron, with 11 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
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