2027 head-to-head · Large Car
2027 Audi A6 e-tron vs Audi S6 e-tron
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 A6 e-tron is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity, it costs about $716 a year to fuel (127 MPGe), versus $883 for the 2027 Audi S6 e-tron (103 MPGe). That's roughly $167 a year, or about $837 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 A6 e-tron
- Audi S6 e-tron
Side by side
| Audi A6 e-tron | Audi S6 e-tron | |
|---|---|---|
| $716 | Your annual fuel cost | $883 |
| 127 MPGe | Combined efficiency | 103 MPGe |
| 134 MPGe | City | 106 MPGe |
| 120 MPGe | Highway | 100 MPGe |
| 26.5 kWh | Electricity use (kWh/100 mi) | 32.7 kWh |
| 395 mi | Driving range | 326 mi |
| 96 cu ft | Passenger volume | 95 cu ft |
| 26 cu ft | Cargo volume | 26 cu ft |
| 0 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 10/10 | EPA fuel economy score | 9/10 |
| 10/10 | EPA greenhouse gas score | 10/10 |
| 12 hrs | Charge time at 240V | 12 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motors (495 kW) | Engine / motor | Electric motors (495 kW) |
| Single-speed | Transmission | Single-speed |
| RWD | 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 A6 e-tron vs Audi S6 e-tron across model years
- Audi A6 e-tron
- Audi S6 e-tron
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 Audi A6 e-tron goes farther between stops: about 395 miles on a charge, compared with 326 miles for the Audi S6 e-tron.
Among 16 2027 large cars, the Audi A6 e-tron ranks 2nd and the Audi S6 e-tron 3rd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2027 Audi A6 e-tron or the 2027 Audi S6 e-tron?
Measured by cost to drive, the Audi A6 e-tron. The Audi A6 e-tron is rated 127 MPGe combined and the Audi S6 e-tron 103 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2027 Audi A6 e-tron vs. the Audi S6 e-tron per year?
At 15,000 miles a year with 18¢/kWh electricity, about $716 for the Audi A6 e-tron and $883 for the Audi S6 e-tron.
Which has more range?
The Audi A6 e-tron: about 395 miles versus 326 miles.
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