2027 head-to-head · Large Car
2027 Audi S6 e-tron vs BMW i7
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 2027 Audi S6 e-tron is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity, it costs about $883 a year to fuel (103 MPGe), versus $958 for the 2027 BMW i7 (95 MPGe). That's roughly $76 a year, or about $378 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 S6 e-tron
- BMW i7
Side by side
| Audi S6 e-tron | BMW i7 | |
|---|---|---|
| $883 | Your annual fuel cost | $958 |
| 103 MPGe | Combined efficiency | 95 MPGe |
| 106 MPGe | City | 94 MPGe |
| 100 MPGe | Highway | 96 MPGe |
| 32.7 kWh | Electricity use (kWh/100 mi) | 35.5 kWh |
| 326 mi | Driving range | 373 mi |
| 95 cu ft | Passenger volume | 109 cu ft |
| 26 cu ft | Cargo volume | 11 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 |
| 12 hrs | Charge time at 240V | 11 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motors (495 kW) | Engine / motor | Electric motors (420 kW) |
| Single-speed | Transmission | Single-speed |
| AWD | Drivetrain | AWD |
✓ 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 S6 e-tron vs BMW i7 across model years
- Audi S6 e-tron
- BMW i7
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 i7 goes farther between stops: about 373 miles on a charge, compared with 326 miles for the Audi S6 e-tron.
Per EPA interior volume figures, the BMW i7 has more passenger space (109 vs. 95 cu ft); the Audi S6 e-tron has more cargo space (26 vs. 11 cu ft).
Among 16 2027 large cars, the Audi S6 e-tron ranks 3rd and the BMW i7 5th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2027 Audi S6 e-tron or the 2027 BMW i7?
Measured by cost to drive, the Audi S6 e-tron. The Audi S6 e-tron is rated 103 MPGe combined and the BMW i7 95 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2027 Audi S6 e-tron vs. the BMW i7 per year?
At 15,000 miles a year with 18¢/kWh electricity, about $883 for the Audi S6 e-tron and $958 for the BMW i7.
Which has more range?
The BMW i7: about 373 miles versus 326 miles.
Which has more cargo space?
The Audi S6 e-tron, with 26 cu ft of luggage volume versus 11 cu ft (EPA interior volume index).
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