2015 head-to-head · Large Car
2015 Mercedes-Benz S-Class Plug-in Hybrid vs Porsche Panamera 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.
RWD · 3.0L 6-cyl turbo · 7-speed automatic · 58 MPGe + 26 MPG
RWD · 3.0L 6-cyl supercharged · 8-speed dual-clutch · 50 MPGe + 25 MPG
On fuel costs these two are nearly tied. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, the most efficient 2015 Mercedes-Benz S-Class Plug-in Hybrid (58 MPGe + 26 MPG) costs about $2,037 a year to fuel and the 2015 Porsche Panamera Plug-in Hybrid (50 MPGe + 25 MPG) about $1,996.
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 S-Class Plug-in Hybrid
- Porsche Panamera Plug-in Hybrid
Side by side
| Mercedes-Benz S-Class Plug-in Hybrid | Porsche Panamera Plug-in Hybrid | |
|---|---|---|
| $2,037 | Your annual fuel cost | $1,996 |
| 58 MPGe + 26 MPG | Combined efficiency | 50 MPGe + 25 MPG |
| 54 MPGe / 24 MPG | City | 42 MPGe / 23 MPG |
| 63 MPGe / 30 MPG | Highway | 66 MPGe / 29 MPG |
| 59 kWh | Electricity use (kWh/100 mi) | 52 kWh |
| 450 mi | Driving range | 540 mi |
| 14 mi | All-electric range | 16 mi |
| 112 cu ft | Passenger volume | 108 cu ft |
| 9 cu ft | Cargo volume | 16 cu ft |
| 227 g/mi | Tailpipe CO₂ (g/mi) | 229 g/mi |
| 8/10 | EPA fuel economy score | 8/10 |
| 9/10 | EPA greenhouse gas score | 9/10 |
| 2.8 hrs | Charge time at 240V | 3 hrs |
| Plug-in hybrid | Powertrain | Plug-in hybrid |
| Premium gas + electricity | Fuel | Premium gas + electricity |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-cyl supercharged |
| 7-speed automatic | Transmission | 8-speed dual-clutch |
| 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.
Mercedes-Benz S-Class Plug-in Hybrid vs Porsche Panamera Plug-in Hybrid across model years
- Mercedes-Benz S-Class Plug-in Hybrid
- Porsche Panamera 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
The Porsche Panamera Plug-in Hybrid goes farther between stops: about 540 miles on a full tank and charge, compared with 450 miles for the Mercedes-Benz S-Class Plug-in Hybrid.
Per EPA interior volume figures, the Mercedes-Benz S-Class Plug-in Hybrid has more passenger space (112 vs. 108 cu ft); the Porsche Panamera Plug-in Hybrid has more cargo space (16 vs. 9 cu ft).
Among 29 2015 large cars, the Mercedes-Benz S-Class Plug-in Hybrid ranks 11th and the Porsche Panamera Plug-in Hybrid 7th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 Mercedes-Benz S-Class Plug-in Hybrid or the 2015 Porsche Panamera Plug-in Hybrid?
Measured by cost to drive, the Porsche Panamera Plug-in Hybrid. The Mercedes-Benz S-Class Plug-in Hybrid is rated 58 MPGe + 26 MPG combined and the Porsche Panamera Plug-in Hybrid 50 MPGe + 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Mercedes-Benz S-Class Plug-in Hybrid vs. the Porsche Panamera Plug-in Hybrid per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $2,037 for the Mercedes-Benz S-Class Plug-in Hybrid and $1,996 for the Porsche Panamera Plug-in Hybrid.
Which has more range?
The Porsche Panamera Plug-in Hybrid: about 540 miles versus 450 miles.
Which has more cargo space?
The Porsche Panamera Plug-in Hybrid, with 16 cu ft of luggage volume versus 9 cu ft (EPA interior volume index).
Mercedes-Benz S-Class Plug-in Hybrid vs Porsche Panamera Plug-in Hybrid in other years
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