2021 head-to-head · Large Car

2021 Audi S8 Hybrid vs Genesis G90

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
$3,703/ year to fuel
16 MPG

AWD · 4.0L 8-cyl turbo · 8-speed automatic · 16 MPG

✓ Cheaper to run
$2,962/ year to fuel
20 MPG

The 2021 Genesis G90 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,962 a year to fuel (20 MPG), versus $3,703 for the 2021 Audi S8 Hybrid (16 MPG). That's roughly $741 a year, or about $3,703 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 G90

Side by side

Audi S8 HybridGenesis G90
$3,703 Your annual fuel cost $2,962
16 MPG Combined efficiency 20 MPG
13 MPG City 17 MPG
22 MPG Highway 24 MPG
111 cu ft Passenger volume 113 cu ft
13 cu ft Cargo volume 15 cu ft
545 g/mi Tailpipe CO₂ (g/mi) 460 g/mi
2/10 EPA fuel economy score 4/10
2/10 EPA greenhouse gas score 4/10
Hybrid Powertrain Gas
Premium gasoline Fuel Premium gasoline
4.0L 8-cyl turbo Engine / motor 3.3L 6-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 G90 across model years

  • Audi S8 Hybrid
  • Genesis G90

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 G90 has more cargo space (15 vs. 13 cu ft).

Among 27 2021 large cars, the Audi S8 Hybrid ranks 25th and the Genesis G90 23rd for lowest fuel cost.

The powertrains differ: the Audi S8 Hybrid is a full hybrid, while the Genesis G90 is a conventional gas model.

Frequently asked questions

Which is more fuel-efficient, the 2021 Audi S8 Hybrid or the 2021 Genesis G90?

Measured by cost to drive, the Genesis G90. The Audi S8 Hybrid is rated 16 MPG combined and the Genesis G90 20 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2021 Audi S8 Hybrid vs. the Genesis G90 per year?

At 15,000 miles a year with $3.95/gal premium gas, about $3,703 for the Audi S8 Hybrid and $2,962 for the Genesis G90.

Which has more cargo space?

The Genesis G90, with 15 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).

Audi S8 Hybrid vs Genesis G90 in other years

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