2017 head-to-head · Compact Car
2017 Bentley Continental Supersports vs Mercedes-Benz CLS-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.
AWD · 6.0L 12-cyl turbo · 8-speed automatic · 14 MPG
The 2017 Mercedes-Benz CLS-Class is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,821 a year to fuel (21 MPG), versus $4,232 for the 2017 Bentley Continental Supersports (14 MPG). That's roughly $1,411 a year, or about $7,054 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
- Bentley Continental Supersports
- Mercedes-Benz CLS-Class
Side by side
| Bentley Continental Supersports | Mercedes-Benz CLS-Class | |
|---|---|---|
| $4,232 | Your annual fuel cost | $2,821 |
| 14 MPG | Combined efficiency | 21 MPG |
| 11 MPG | City | 18 MPG |
| 20 MPG | Highway | 26 MPG |
| 89 cu ft | Passenger volume | 92 cu ft |
| 11 cu ft | Cargo volume | 11 cu ft |
| 644 g/mi | Tailpipe CO₂ (g/mi) | 425 g/mi |
| 1/10 | EPA fuel economy score | 4/10 |
| 1/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 6.0L 12-cyl turbo | Engine / motor | 4.7L 8-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.
Bentley Continental Supersports vs Mercedes-Benz CLS-Class across model years
- Bentley Continental Supersports
- Mercedes-Benz CLS-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 CLS-Class has more passenger space (92 vs. 89 cu ft).
Among 50 2017 compact cars, the Bentley Continental Supersports ranks 49th and the Mercedes-Benz CLS-Class 45th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2017 Bentley Continental Supersports or the 2017 Mercedes-Benz CLS-Class?
Measured by cost to drive, the Mercedes-Benz CLS-Class. The Bentley Continental Supersports is rated 14 MPG combined and the Mercedes-Benz CLS-Class 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2017 Bentley Continental Supersports vs. the Mercedes-Benz CLS-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $4,232 for the Bentley Continental Supersports and $2,821 for the Mercedes-Benz CLS-Class.
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