2021 head-to-head · Midsize & Large SUV
2021 Mercedes-Benz GLE-Class Hybrid vs Porsche Cayenne Plug-in 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.
The 2021 Porsche Cayenne Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, it costs about $2,470 a year to fuel (46 MPGe + 21 MPG), versus $2,576 for the 2021 Mercedes-Benz GLE-Class Hybrid (23 MPG). That's roughly $107 a year, or about $533 over five years.
Your numbers
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Fuel cost over 10 years
- Mercedes-Benz GLE-Class Hybrid
- Porsche Cayenne Plug-in Hybrid
Side by side
| Mercedes-Benz GLE-Class Hybrid | Porsche Cayenne Plug-in Hybrid | |
|---|---|---|
| $2,576 | Your annual fuel cost | $2,470 |
| 23 MPG | Combined efficiency | 46 MPGe + 21 MPG |
| 21 MPG | City | 45 MPGe / 20 MPG |
| 26 MPG | Highway | 48 MPGe / 22 MPG |
| — | Electricity use (kWh/100 mi) | 72 kWh |
| — | Driving range | 430 mi |
| — | All-electric range | 17 mi |
| 393 g/mi | Tailpipe CO₂ (g/mi) | 257 g/mi |
| 5/10 | EPA fuel economy score | 6/10 |
| 5/10 | EPA greenhouse gas score | 7/10 |
| — | Charge time at 240V | 3 hrs |
| Hybrid | Powertrain | Plug-in hybrid |
| Premium gasoline | Fuel | Premium gas + electricity |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 9-speed automatic | Transmission | 8-speed automatic |
| 4WD | 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 GLE-Class Hybrid vs Porsche Cayenne Plug-in Hybrid across model years
- Mercedes-Benz GLE-Class Hybrid
- Porsche Cayenne Plug-in 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
Among 65 2021 midsize & large SUVs, the Mercedes-Benz GLE-Class Hybrid ranks 29th and the Porsche Cayenne Plug-in Hybrid 25th for lowest fuel cost.
The powertrains differ: the Mercedes-Benz GLE-Class Hybrid is a full hybrid, while the Porsche Cayenne Plug-in Hybrid is a plug-in hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2021 Mercedes-Benz GLE-Class Hybrid or the 2021 Porsche Cayenne Plug-in Hybrid?
Measured by cost to drive, the Porsche Cayenne Plug-in Hybrid. The Mercedes-Benz GLE-Class Hybrid is rated 23 MPG combined and the Porsche Cayenne Plug-in Hybrid 46 MPGe + 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Mercedes-Benz GLE-Class Hybrid vs. the Porsche Cayenne Plug-in Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, about $2,576 for the Mercedes-Benz GLE-Class Hybrid and $2,470 for the Porsche Cayenne Plug-in Hybrid.
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