2027 head-to-head · Large Car

2027 Audi S6 e-tron vs BMW 7 Series Hybrid

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$883/ year to fuel
103 MPGe
✓ Cheaper to run
$2,279/ year to fuel
26 MPG

The 2027 Audi S6 e-tron is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, it costs about $883 a year to fuel (103 MPGe), versus $2,279 for the 2027 BMW 7 Series Hybrid (26 MPG). That's roughly $1,396 a year, or about $6,980 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 7 Series Hybrid

Side by side

Audi S6 e-tronBMW 7 Series Hybrid
$883 Your annual fuel cost $2,279
103 MPGe Combined efficiency 26 MPG
106 MPGe City 24 MPG
100 MPGe Highway 30 MPG
32.7 kWh Electricity use (kWh/100 mi) —
326 mi Driving range —
95 cu ft Passenger volume 110 cu ft
26 cu ft Cargo volume 14 cu ft
0 g/mi Tailpipe CO₂ (g/mi) 345 g/mi
9/10 EPA fuel economy score 5/10
10/10 EPA greenhouse gas score 5/10
12 hrs Charge time at 240V —
Electric Powertrain Hybrid
Electricity Fuel Premium gasoline
Electric motors (495 kW) Engine / motor 3.0L 6-cyl turbo
Single-speed Transmission 8-speed automatic
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 S6 e-tron vs BMW 7 Series Hybrid across model years

  • Audi S6 e-tron
  • BMW 7 Series Hybrid

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 7 Series Hybrid has more passenger space (110 vs. 95 cu ft); the Audi S6 e-tron has more cargo space (26 vs. 14 cu ft).

Among 16 2027 large cars, the Audi S6 e-tron ranks 3rd and the BMW 7 Series Hybrid 9th for lowest fuel cost.

Because the Audi S6 e-tron 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 BMW 7 Series Hybrid; relying on DC fast chargers can erase it.

Frequently asked questions

Which is more fuel-efficient, the 2027 Audi S6 e-tron or the 2027 BMW 7 Series Hybrid?

Measured by cost to drive, the Audi S6 e-tron. The Audi S6 e-tron is rated 103 MPGe combined and the BMW 7 Series Hybrid 26 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2027 Audi S6 e-tron vs. the BMW 7 Series Hybrid per year?

At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $883 for the Audi S6 e-tron and $2,279 for the BMW 7 Series Hybrid.

Which has more cargo space?

The Audi S6 e-tron, with 26 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).

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