2015 head-to-head · Subcompact Car
2015 Audi S5 vs BMW 6 Series
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 BMW 6 Series is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,370 a year to fuel (25 MPG), versus $2,821 for the 2015 Audi S5 (21 MPG). That's roughly $451 a year, or about $2,257 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 S5
- BMW 6 Series
Side by side
| Audi S5 | BMW 6 Series | |
|---|---|---|
| $2,821 | Your annual fuel cost | $2,370 |
| 21 MPG | Combined efficiency | 25 MPG |
| 18 MPG | City | 21 MPG |
| 28 MPG | Highway | 31 MPG |
| 84 cu ft | Passenger volume | 87 cu ft |
| 13 cu ft | Cargo volume | 13 cu ft |
| 413 g/mi | Tailpipe CO₂ (g/mi) | 361 g/mi |
| 5/10 | EPA fuel economy score | 6/10 |
| 5/10 | EPA greenhouse gas score | 6/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl supercharged | Engine / motor | 3.0L 6-cyl turbo |
| 7-speed dual-clutch | 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 S5 vs BMW 6 Series across model years
- Audi S5
- BMW 6 Series
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 6 Series has more passenger space (87 vs. 84 cu ft).
Among 36 2015 subcompact cars, the Audi S5 ranks 26th and the BMW 6 Series 21st for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 Audi S5 or the 2015 BMW 6 Series?
Measured by cost to drive, the BMW 6 Series. The Audi S5 is rated 21 MPG combined and the BMW 6 Series 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Audi S5 vs. the BMW 6 Series per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the Audi S5 and $2,370 for the BMW 6 Series.
Audi S5 vs BMW 6 Series in other years
More 2015 comparisons
Audi S5 vs…
Or compare the 2015 Audi S5 with anything else: