2027 head-to-head · Large Car

2027 Audi S6 e-tron vs Genesis G80

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
$2,576/ year to fuel
23 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 $2,576 for the 2027 Genesis G80 (23 MPG). That's roughly $1,693 a year, or about $8,466 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
  • Genesis G80

Side by side

Audi S6 e-tronGenesis G80
$883 Your annual fuel cost $2,576
103 MPGe Combined efficiency 23 MPG
106 MPGe City 20 MPG
100 MPGe Highway 29 MPG
32.7 kWh Electricity use (kWh/100 mi) —
326 mi Driving range —
95 cu ft Passenger volume 107 cu ft
26 cu ft Cargo volume 15 cu ft
0 g/mi Tailpipe CO₂ (g/mi) 380 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 Gas
Electricity Fuel Premium gasoline
Electric motors (495 kW) Engine / motor 2.5L 4-cyl turbo
Single-speed Transmission 8-speed automatic
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 Genesis G80 across model years

  • Audi S6 e-tron
  • Genesis G80

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 Genesis G80 has more passenger space (107 vs. 95 cu ft); the Audi S6 e-tron has more cargo space (26 vs. 15 cu ft).

Among 16 2027 large cars, the Audi S6 e-tron ranks 3rd and the Genesis G80 11th 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 Genesis G80; 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 Genesis G80?

Measured by cost to drive, the Audi S6 e-tron. The Audi S6 e-tron is rated 103 MPGe combined and the Genesis G80 23 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2027 Audi S6 e-tron vs. the Genesis G80 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 $2,576 for the Genesis G80.

Which has more cargo space?

The Audi S6 e-tron, with 26 cu ft of luggage volume versus 15 cu ft (EPA interior volume index).

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