2017 head-to-head · Compact Car
2017 Infiniti Q50 Hybrid 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 2017 Infiniti Q50 Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,043 a year to fuel (29 MPG), versus $2,821 for the 2017 Mercedes-Benz S-Class (21 MPG). That's roughly $778 a year, or about $3,892 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
- Infiniti Q50 Hybrid
- Mercedes-Benz S-Class
Side by side
| Infiniti Q50 Hybrid | Mercedes-Benz S-Class | |
|---|---|---|
| $2,043 | Your annual fuel cost | $2,821 |
| 29 MPG | Combined efficiency | 21 MPG |
| 27 MPG | City | 18 MPG |
| 32 MPG | Highway | 26 MPG |
| 100 cu ft | Passenger volume | 112 cu ft |
| 9 cu ft | Cargo volume | 12 cu ft |
| 308 g/mi | Tailpipe CO₂ (g/mi) | 434 g/mi |
| 7/10 | EPA fuel economy score | 4/10 |
| 7/10 | EPA greenhouse gas score | 4/10 |
| Hybrid | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.5L 6-cyl | Engine / motor | 4.7L 8-cyl turbo |
| 7-speed automatic | Transmission | 9-speed automatic |
| RWD | 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.
Infiniti Q50 Hybrid vs Mercedes-Benz S-Class across model years
- Infiniti Q50 Hybrid
- 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 (112 vs. 100 cu ft); the Mercedes-Benz S-Class has more cargo space (12 vs. 9 cu ft).
Among 50 2017 compact cars, the Infiniti Q50 Hybrid ranks 33rd and the Mercedes-Benz S-Class 44th for lowest fuel cost.
The powertrains differ: the Infiniti Q50 Hybrid is a full hybrid, while the Mercedes-Benz S-Class is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2017 Infiniti Q50 Hybrid or the 2017 Mercedes-Benz S-Class?
Measured by cost to drive, the Infiniti Q50 Hybrid. The Infiniti Q50 Hybrid is rated 29 MPG combined and the Mercedes-Benz S-Class 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2017 Infiniti Q50 Hybrid vs. the Mercedes-Benz S-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,043 for the Infiniti Q50 Hybrid and $2,821 for the Mercedes-Benz S-Class.
Which has more cargo space?
The Mercedes-Benz S-Class, with 12 cu ft of luggage volume versus 9 cu ft (EPA interior volume index).
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