2015 head-to-head · Large Car
2015 BMW 7 Series Diesel vs Porsche Panamera
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
The 2015 BMW 7 Series Diesel is the cheaper one to run. Driving 15,000 miles a year with $3.70/gal diesel fuel and $3.95/gal premium gas, it costs about $2,135 a year to fuel (26 MPG), versus $2,693 for the 2015 Porsche Panamera (22 MPG). That's roughly $559 a year, or about $2,793 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
Side by side
| BMW 7 Series Diesel | Porsche Panamera | |
|---|---|---|
| $2,135 | Your annual fuel cost | $2,693 |
| 26 MPG | Combined efficiency | 22 MPG |
| 23 MPG | City | 18 MPG |
| 31 MPG | Highway | 28 MPG |
| 115 cu ft | Passenger volume | 108 cu ft |
| 14 cu ft | Cargo volume | 16 cu ft |
| 387 g/mi | Tailpipe CO₂ (g/mi) | 413 g/mi |
| 6/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Diesel | Powertrain | Gas |
| Diesel | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.6L 6-cyl |
| 8-speed automatic | Transmission | 7-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 across model years
- BMW 7 Series Diesel
- Porsche Panamera
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 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 22nd for lowest fuel cost.
The powertrains differ: the BMW 7 Series Diesel is a diesel, while the Porsche Panamera is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2015 BMW 7 Series Diesel or the 2015 Porsche Panamera?
Measured by cost to drive, the BMW 7 Series Diesel. The BMW 7 Series Diesel is rated 26 MPG combined and the Porsche Panamera 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 BMW 7 Series Diesel vs. the Porsche Panamera per year?
At 15,000 miles a year with $3.70/gal diesel fuel and $3.95/gal premium gas, about $2,135 for the BMW 7 Series Diesel and $2,693 for the Porsche Panamera.
Which has more cargo space?
The Porsche Panamera, with 16 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).
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