2018 head-to-head · Large Car
2018 Genesis G90 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.
The 2018 Mercedes-Benz S-Class 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
- Genesis G90
- Mercedes-Benz S-Class
Side by side
| Genesis G90 | Mercedes-Benz S-Class | |
|---|---|---|
| $2,962 | Your annual fuel cost | $2,693 |
| 20 MPG | Combined efficiency | 22 MPG |
| 17 MPG | City | 19 MPG |
| 24 MPG | Highway | 28 MPG |
| 113 cu ft | Passenger volume | 112 cu ft |
| 16 cu ft | Cargo volume | 12 cu ft |
| 448 g/mi | Tailpipe CO₂ (g/mi) | 403 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 |
| 3.3L 6-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 9-speed automatic |
| AWD | Drivetrain | RWD |
✓ 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 G90 vs Mercedes-Benz S-Class across model years
- Genesis G90
- 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 Genesis G90 has more cargo space (16 vs. 12 cu ft).
Among 31 2018 large cars, the Genesis G90 ranks 28th and the Mercedes-Benz S-Class 25th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 Genesis G90 or the 2018 Mercedes-Benz S-Class?
Measured by cost to drive, the Mercedes-Benz S-Class. The Genesis G90 is rated 20 MPG combined and the Mercedes-Benz S-Class 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Genesis G90 vs. the Mercedes-Benz S-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,962 for the Genesis G90 and $2,693 for the Mercedes-Benz S-Class.
Which has more cargo space?
The Genesis G90, with 16 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
Genesis G90 vs Mercedes-Benz S-Class in other years
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