2015 head-to-head · Large Car
2015 BMW 7 Series Diesel 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.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 26 MPG
RWD · 3.0L 6-cyl supercharged · 8-speed dual-clutch · 50 MPGe + 25 MPG
The 2015 Porsche Panamera Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.70/gal diesel fuel, 18¢/kWh electricity and $3.95/gal premium gas, it costs about $1,996 a year to fuel (50 MPGe + 25 MPG), versus $2,135 for the 2015 BMW 7 Series Diesel (26 MPG). That's roughly $138 a year, or about $692 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
- BMW 7 Series Diesel
- Porsche Panamera Plug-in Hybrid
Side by side
| BMW 7 Series Diesel | Porsche Panamera Plug-in Hybrid | |
|---|---|---|
| $2,135 | Your annual fuel cost | $1,996 |
| 26 MPG | Combined efficiency | 50 MPGe + 25 MPG |
| 23 MPG | City | 42 MPGe / 23 MPG |
| 31 MPG | Highway | 66 MPGe / 29 MPG |
| — | Electricity use (kWh/100 mi) | 52 kWh |
| — | Driving range | 540 mi |
| — | All-electric range | 16 mi |
| 115 cu ft | Passenger volume | 108 cu ft |
| 14 cu ft | Cargo volume | 16 cu ft |
| 387 g/mi | Tailpipe CO₂ (g/mi) | 229 g/mi |
| 6/10 | EPA fuel economy score | 8/10 |
| 5/10 | EPA greenhouse gas score | 9/10 |
| — | Charge time at 240V | 3 hrs |
| Diesel | Powertrain | Plug-in hybrid |
| Diesel | Fuel | Premium gas + electricity |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-cyl supercharged |
| 8-speed automatic | Transmission | 8-speed dual-clutch |
| 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.
BMW 7 Series Diesel vs Porsche Panamera Plug-in Hybrid across model years
- BMW 7 Series Diesel
- 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
Per EPA interior volume figures, the BMW 7 Series Diesel has more passenger space (115 vs. 108 cu ft); the Porsche Panamera Plug-in Hybrid has more cargo space (16 vs. 14 cu ft).
Among 29 2015 large cars, the BMW 7 Series Diesel ranks 15th and the Porsche Panamera Plug-in Hybrid 7th for lowest fuel cost.
The powertrains differ: the BMW 7 Series Diesel is a diesel, while the Porsche Panamera Plug-in Hybrid is a plug-in hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2015 BMW 7 Series Diesel or the 2015 Porsche Panamera Plug-in Hybrid?
Measured by cost to drive, the Porsche Panamera Plug-in Hybrid. The BMW 7 Series Diesel is rated 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 BMW 7 Series Diesel vs. the Porsche Panamera Plug-in Hybrid per year?
At 15,000 miles a year with $3.70/gal diesel fuel, 18¢/kWh electricity and $3.95/gal premium gas, about $2,135 for the BMW 7 Series Diesel and $1,996 for the Porsche Panamera Plug-in Hybrid.
Which has more cargo space?
The Porsche Panamera Plug-in Hybrid, with 16 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).
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