2015 head-to-head · Large Car
2015 Jaguar XJ 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.
The 2015 Porsche Panamera is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,693 a year to fuel (22 MPG), versus $2,821 for the 2015 Jaguar XJ (21 MPG). That's roughly $128 a year, or about $641 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
- Jaguar XJ
- Porsche Panamera
Side by side
| Jaguar XJ | Porsche Panamera | |
|---|---|---|
| $2,821 | Your annual fuel cost | $2,693 |
| 21 MPG | Combined efficiency | 22 MPG |
| 18 MPG | City | 18 MPG |
| 27 MPG | Highway | 28 MPG |
| 102 cu ft | Passenger volume | 108 cu ft |
| 18 cu ft | Cargo volume | 16 cu ft |
| 423 g/mi | Tailpipe CO₂ (g/mi) | 413 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Flex-fuel | Powertrain | Gas |
| Premium gasoline or E85 | Fuel | Premium gasoline |
| 3.0L 6-cyl supercharged | Engine / motor | 3.6L 6-cyl |
| 8-speed automatic | Transmission | 7-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.
Jaguar XJ vs Porsche Panamera across model years
- Jaguar XJ
- 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 Porsche Panamera has more passenger space (108 vs. 102 cu ft); the Jaguar XJ has more cargo space (18 vs. 16 cu ft).
Among 29 2015 large cars, the Jaguar XJ ranks 23rd and the Porsche Panamera 22nd for lowest fuel cost.
The powertrains differ: the Jaguar XJ is a flex-fuel model, while the Porsche Panamera is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2015 Jaguar XJ or the 2015 Porsche Panamera?
Measured by cost to drive, the Porsche Panamera. The Jaguar XJ is rated 21 MPG combined and the Porsche Panamera 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Jaguar XJ vs. the Porsche Panamera per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the Jaguar XJ and $2,693 for the Porsche Panamera.
Which has more cargo space?
The Jaguar XJ, with 18 cu ft of luggage volume versus 16 cu ft (EPA interior volume index).
Jaguar XJ vs Porsche Panamera in other years
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