2026 head-to-head · Large Car

2026 Audi S8 Hybrid 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
$3,292/ year to fuel
18 MPG

AWD · 4.0L 8-cyl turbo · 8-speed automatic · 18 MPG

✓ Cheaper to run
$2,576/ year to fuel
23 MPG

The 2026 Genesis G80 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,576 a year to fuel (23 MPG), versus $3,292 for the 2026 Audi S8 Hybrid (18 MPG). That's roughly $716 a year, or about $3,578 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 S8 Hybrid
  • Genesis G80

Side by side

Audi S8 HybridGenesis G80
$3,292 Your annual fuel cost $2,576
18 MPG Combined efficiency 23 MPG
15 MPG City 20 MPG
24 MPG Highway 29 MPG
111 cu ft Passenger volume 107 cu ft
13 cu ft Cargo volume 15 cu ft
502 g/mi Tailpipe CO₂ (g/mi) 382 g/mi
3/10 EPA fuel economy score 5/10
3/10 EPA greenhouse gas score 5/10
Hybrid Powertrain Gas
Premium gasoline Fuel Premium gasoline
4.0L 8-cyl turbo Engine / motor 2.5L 4-cyl turbo
8-speed automatic 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 S8 Hybrid vs Genesis G80 across model years

  • Audi S8 Hybrid
  • 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 Audi S8 Hybrid has more passenger space (111 vs. 107 cu ft); the Genesis G80 has more cargo space (15 vs. 13 cu ft).

Among 24 2026 large cars, the Audi S8 Hybrid ranks 21st and the Genesis G80 16th for lowest fuel cost.

The powertrains differ: the Audi S8 Hybrid is a full hybrid, while the Genesis G80 is a conventional gas model.

Frequently asked questions

Which is more fuel-efficient, the 2026 Audi S8 Hybrid or the 2026 Genesis G80?

Measured by cost to drive, the Genesis G80. The Audi S8 Hybrid is rated 18 MPG combined and the Genesis G80 23 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2026 Audi S8 Hybrid vs. the Genesis G80 per year?

At 15,000 miles a year with $3.95/gal premium gas, about $3,292 for the Audi S8 Hybrid and $2,576 for the Genesis G80.

Which has more cargo space?

The Genesis G80, with 15 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).

Audi S8 Hybrid vs Genesis G80 in other years

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