2026 head-to-head · Large Car
2026 Genesis G80 vs Mercedes-Benz S-Class Hybrid
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas, the most efficient 2026 Genesis G80 (23 MPG) costs about $2,576 a year to fuel and the 2026 Mercedes-Benz S-Class Hybrid (23 MPG) about $2,576.
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 Hybrid
Side by side
| Genesis G80 | Mercedes-Benz S-Class Hybrid | |
|---|---|---|
| $2,576 | Your annual fuel cost | $2,576 |
| 23 MPG | Combined efficiency | 23 MPG |
| 20 MPG | City | 20 MPG |
| 29 MPG | Highway | 29 MPG |
| 107 cu ft | Passenger volume | 112 cu ft |
| 15 cu ft | Cargo volume | 13 cu ft |
| 382 g/mi | Tailpipe CO₂ (g/mi) | 380 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Hybrid |
| Premium gasoline | Fuel | Premium gasoline |
| 2.5L 4-cyl turbo | Engine / motor | 3.0L 6-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 Hybrid across model years
- Genesis G80
- Mercedes-Benz S-Class Hybrid
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 Hybrid has more passenger space (112 vs. 107 cu ft); the Genesis G80 has more cargo space (15 vs. 13 cu ft).
Among 24 2026 large cars, the Genesis G80 ranks 16th and the Mercedes-Benz S-Class Hybrid 15th for lowest fuel cost.
The powertrains differ: the Genesis G80 is a conventional gas model, while the Mercedes-Benz S-Class Hybrid is a full hybrid.
Frequently asked questions
How much does it cost to fuel the 2026 Genesis G80 vs. the Mercedes-Benz S-Class Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,576 for the Genesis G80 and $2,576 for the Mercedes-Benz S-Class Hybrid.
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 Hybrid in other years
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