2024 head-to-head · Large Car

2024 Genesis G80 vs Mercedes-Benz S-Class

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
$2,370/ year to fuel
25 MPG
✓ Cheaper to run
$3,950/ year to fuel
15 MPG

AWD · 6.0L 12-cyl turbo · 9-speed automatic · 15 MPG

The 2024 Genesis G80 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,370 a year to fuel (25 MPG), versus $3,950 for the 2024 Mercedes-Benz S-Class (15 MPG). That's roughly $1,580 a year, or about $7,900 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

  • Genesis G80
  • Mercedes-Benz S-Class

Side by side

Genesis G80Mercedes-Benz S-Class
$2,370 Your annual fuel cost $3,950
25 MPG Combined efficiency 15 MPG
22 MPG City 12 MPG
30 MPG Highway 20 MPG
107 cu ft Passenger volume 118 cu ft
15 cu ft Cargo volume 13 cu ft
361 g/mi Tailpipe CO₂ (g/mi) 610 g/mi
5/10 EPA fuel economy score 2/10
5/10 EPA greenhouse gas score 2/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.5L 4-cyl turbo Engine / motor 6.0L 12-cyl turbo
8-speed automatic Transmission 9-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.

Genesis G80 vs Mercedes-Benz S-Class across model years

  • Genesis G80
  • Mercedes-Benz S-Class

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 Mercedes-Benz S-Class has more passenger space (118 vs. 107 cu ft); the Genesis G80 has more cargo space (15 vs. 13 cu ft).

Among 24 2024 large cars, the Genesis G80 ranks 13th and the Mercedes-Benz S-Class 22nd for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2024 Genesis G80 or the 2024 Mercedes-Benz S-Class?

Measured by cost to drive, the Genesis G80. The Genesis G80 is rated 25 MPG combined and the Mercedes-Benz S-Class 15 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2024 Genesis G80 vs. the Mercedes-Benz S-Class per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,370 for the Genesis G80 and $3,950 for the Mercedes-Benz S-Class.

Which has more cargo space?

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

Genesis G80 vs Mercedes-Benz S-Class in other years

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