2015 head-to-head · Large Car
2015 Audi A8 Diesel vs BMW 7 Series Diesel
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 · 28 MPG
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 26 MPG
The 2015 Audi A8 Diesel is the cheaper one to run. Driving 15,000 miles a year with $3.70/gal diesel fuel, it costs about $1,982 a year to fuel (28 MPG), versus $2,135 for the 2015 BMW 7 Series Diesel (26 MPG). That's roughly $152 a year, or about $762 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 Diesel
- BMW 7 Series Diesel
Side by side
| Audi A8 Diesel | BMW 7 Series Diesel | |
|---|---|---|
| $1,982 | Your annual fuel cost | $2,135 |
| 28 MPG | Combined efficiency | 26 MPG |
| 24 MPG | City | 23 MPG |
| 36 MPG | Highway | 31 MPG |
| 107 cu ft | Passenger volume | 115 cu ft |
| 15 cu ft | Cargo volume | 14 cu ft |
| 360 g/mi | Tailpipe CO₂ (g/mi) | 387 g/mi |
| 7/10 | EPA fuel economy score | 6/10 |
| 6/10 | EPA greenhouse gas score | 5/10 |
| Diesel | Powertrain | Diesel |
| Diesel | Fuel | Diesel |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 8-speed automatic |
| AWD | Drivetrain | AWD |
✓ 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 Diesel vs BMW 7 Series Diesel across model years
- Audi A8 Diesel
- BMW 7 Series Diesel
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. 107 cu ft); the Audi A8 Diesel has more cargo space (15 vs. 14 cu ft).
Among 29 2015 large cars, the Audi A8 Diesel ranks 6th and the BMW 7 Series Diesel 15th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 Audi A8 Diesel or the 2015 BMW 7 Series Diesel?
Measured by cost to drive, the Audi A8 Diesel. The Audi A8 Diesel is rated 28 MPG combined and the BMW 7 Series Diesel 26 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Audi A8 Diesel vs. the BMW 7 Series Diesel per year?
At 15,000 miles a year with $3.70/gal diesel fuel, about $1,982 for the Audi A8 Diesel and $2,135 for the BMW 7 Series Diesel.
Which has more cargo space?
The Audi A8 Diesel, with 15 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).
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