2018 head-to-head · Large Car

2018 Audi A8 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
$2,693/ year to fuel
22 MPG
✓ Cheaper to run
$2,962/ year to fuel
20 MPG

The 2018 Audi A8 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,693 a year to fuel (22 MPG), versus $2,962 for the 2018 Genesis G90 (20 MPG). That's roughly $269 a year, or about $1,347 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 A8
  • Genesis G90

Side by side

Audi A8Genesis G90
$2,693 Your annual fuel cost $2,962
22 MPG Combined efficiency 20 MPG
19 MPG City 17 MPG
29 MPG Highway 24 MPG
107 cu ft Passenger volume 113 cu ft
15 cu ft Cargo volume 16 cu ft
397 g/mi Tailpipe CO₂ (g/mi) 448 g/mi
4/10 EPA fuel economy score 4/10
4/10 EPA greenhouse gas score 4/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
3.0L 6-cyl supercharged 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 A8 vs Genesis G90 across model years

  • Audi A8
  • 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 passenger space (113 vs. 107 cu ft); the Genesis G90 has more cargo space (16 vs. 15 cu ft).

Among 31 2018 large cars, the Audi A8 ranks 26th and the Genesis G90 28th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2018 Audi A8 or the 2018 Genesis G90?

Measured by cost to drive, the Audi A8. The Audi A8 is rated 22 MPG combined and the Genesis G90 20 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2018 Audi A8 vs. the Genesis G90 per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,693 for the Audi A8 and $2,962 for the Genesis G90.

Which has more cargo space?

The Genesis G90, with 16 cu ft of luggage volume versus 15 cu ft (EPA interior volume index).

Audi A8 vs Genesis G90 in other years

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