2015 head-to-head · Midsize & Large SUV
2015 Mercedes-Benz ML-Class vs Porsche Cayenne
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 2015 Mercedes-Benz ML-Class is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,962 a year to fuel (20 MPG), versus $3,118 for the 2015 Porsche Cayenne (19 MPG). That's roughly $156 a year, or about $780 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
- Mercedes-Benz ML-Class
- Porsche Cayenne
Side by side
| Mercedes-Benz ML-Class | Porsche Cayenne | |
|---|---|---|
| $2,962 | Your annual fuel cost | $3,118 |
| 20 MPG | Combined efficiency | 19 MPG |
| 18 MPG | City | 16 MPG |
| 23 MPG | Highway | 24 MPG |
| 440 g/mi | Tailpipe CO₂ (g/mi) | 461 g/mi |
| 5/10 | EPA fuel economy score | 4/10 |
| 5/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.5L 6-cyl | Engine / motor | 3.6L 6-cyl turbo |
| 7-speed automatic | Transmission | 8-speed automatic |
| RWD | 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.
Mercedes-Benz ML-Class vs Porsche Cayenne across model years
- Mercedes-Benz ML-Class
- Porsche Cayenne
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
Among 45 2015 midsize & large SUVs, the Mercedes-Benz ML-Class ranks 33rd and the Porsche Cayenne 37th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 Mercedes-Benz ML-Class or the 2015 Porsche Cayenne?
Measured by cost to drive, the Mercedes-Benz ML-Class. The Mercedes-Benz ML-Class is rated 20 MPG combined and the Porsche Cayenne 19 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Mercedes-Benz ML-Class vs. the Porsche Cayenne per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,962 for the Mercedes-Benz ML-Class and $3,118 for the Porsche Cayenne.
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