2026 head-to-head · Compact Car
2026 Audi RS 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.
AWD · Electric motors (667 kW) · Single-speed · 84 MPGe · 278 mi
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 $1,085 for the 2026 Audi RS e-tron (84 MPGe). That's roughly $316 a year, or about $1,580 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 RS e-tron
- BMW i4
Side by side
| Audi RS e-tron | BMW i4 | |
|---|---|---|
| $1,085 | Your annual fuel cost | $769 |
| 84 MPGe | Combined efficiency | 118 MPGe |
| 85 MPGe | City | 121 MPGe |
| 82 MPGe | Highway | 115 MPGe |
| 40.2 kWh | Electricity use (kWh/100 mi) | 28.5 kWh |
| 278 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 RS e-tron vs BMW i4 across model years
- Audi RS 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 278 miles for the Audi RS e-tron.
Per EPA interior volume figures, the Audi RS e-tron has more cargo space (11 vs. 10 cu ft).
Among 21 2026 compact cars, the Audi RS e-tron ranks 8th and the BMW i4 2nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 Audi RS e-tron or the 2026 BMW i4?
Measured by cost to drive, the BMW i4. The Audi RS e-tron is rated 84 MPGe combined and the BMW i4 118 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 Audi RS e-tron vs. the BMW i4 per year?
At 15,000 miles a year with 18¢/kWh electricity, about $1,085 for the Audi RS e-tron and $769 for the BMW i4.
Which has more range?
The BMW i4: about 333 miles versus 278 miles.
Which has more cargo space?
The Audi RS e-tron, with 11 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
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