2017 head-to-head · Midsize Car
2017 Audi S8 vs Bentley Flying Spur
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 · 4.0L 8-cyl turbo · 8-speed automatic · 18 MPG
The 2017 Audi S8 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $3,292 a year to fuel (18 MPG), versus $3,485 for the 2017 Bentley Flying Spur (17 MPG). That's roughly $194 a year, or about $968 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 S8
- Bentley Flying Spur
Side by side
| Audi S8 | Bentley Flying Spur | |
|---|---|---|
| $3,292 | Your annual fuel cost | $3,485 |
| 18 MPG | Combined efficiency | 17 MPG |
| 15 MPG | City | 14 MPG |
| 24 MPG | Highway | 24 MPG |
| 100 cu ft | Passenger volume | 102 cu ft |
| 15 cu ft | Cargo volume | 13 cu ft |
| 501 g/mi | Tailpipe CO₂ (g/mi) | 517 g/mi |
| 3/10 | EPA fuel economy score | 3/10 |
| 3/10 | EPA greenhouse gas score | 3/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 4.0L 8-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 S8 vs Bentley Flying Spur across model years
- Audi S8
- Bentley Flying Spur
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 Audi S8 has more cargo space (15 vs. 13 cu ft).
Among 67 2017 midsize cars, the Audi S8 ranks 62nd and the Bentley Flying Spur 64th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2017 Audi S8 or the 2017 Bentley Flying Spur?
Measured by cost to drive, the Audi S8. The Audi S8 is rated 18 MPG combined and the Bentley Flying Spur 17 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2017 Audi S8 vs. the Bentley Flying Spur per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,292 for the Audi S8 and $3,485 for the Bentley Flying Spur.
Which has more cargo space?
The Audi S8, with 15 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
Audi S8 vs Bentley Flying Spur in other years
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