2015 head-to-head · Large Car

2015 Audi A8 vs Jaguar XJ

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$2,693/ year to fuel
22 MPG
✓ Cheaper to run
$2,821/ year to fuel
21 MPG

The 2015 Audi A8 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

  • Audi A8
  • Jaguar XJ

Side by side

Audi A8Jaguar XJ
$2,693 Your annual fuel cost $2,821
22 MPG Combined efficiency 21 MPG
18 MPG City 18 MPG
30 MPG Highway 27 MPG
100 cu ft Passenger volume 102 cu ft
15 cu ft Cargo volume 18 cu ft
401 g/mi Tailpipe CO₂ (g/mi) 423 g/mi
5/10 EPA fuel economy score 5/10
5/10 EPA greenhouse gas score 5/10
Gas Powertrain Flex-fuel
Premium gasoline Fuel Premium gasoline or E85
4.0L 8-cyl turbo Engine / motor 3.0L 6-cyl supercharged
8-speed automatic Transmission 8-speed automatic
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.

Audi A8 vs Jaguar XJ across model years

  • Audi A8
  • Jaguar XJ

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 Jaguar XJ has more cargo space (18 vs. 15 cu ft).

Among 29 2015 large cars, the Audi A8 ranks 21st and the Jaguar XJ 23rd for lowest fuel cost.

The powertrains differ: the Audi A8 is a conventional gas model, while the Jaguar XJ is a flex-fuel model.

Frequently asked questions

Which is more fuel-efficient, the 2015 Audi A8 or the 2015 Jaguar XJ?

Measured by cost to drive, the Audi A8. The Audi A8 is rated 22 MPG combined and the Jaguar XJ 21 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2015 Audi A8 vs. the Jaguar XJ per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,693 for the Audi A8 and $2,821 for the Jaguar XJ.

Which has more cargo space?

The Jaguar XJ, with 18 cu ft of luggage volume versus 15 cu ft (EPA interior volume index).

Audi A8 vs Jaguar XJ in other years

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