2017 head-to-head · Subcompact Car
2017 Audi A5 vs Porsche 911
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 2017 Audi A5 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,279 a year to fuel (26 MPG), versus $2,370 for the 2017 Porsche 911 (25 MPG). That's roughly $91 a year, or about $456 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 A5
- Porsche 911
Side by side
| Audi A5 | Porsche 911 | |
|---|---|---|
| $2,279 | Your annual fuel cost | $2,370 |
| 26 MPG | Combined efficiency | 25 MPG |
| 23 MPG | City | 22 MPG |
| 32 MPG | Highway | 30 MPG |
| 84 cu ft | Passenger volume | 70 cu ft |
| 12 cu ft | Cargo volume | 5 cu ft |
| 338 g/mi | Tailpipe CO₂ (g/mi) | 355 g/mi |
| 6/10 | EPA fuel economy score | 5/10 |
| 6/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 6-speed manual | Transmission | 7-speed dual-clutch |
| 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 A5 vs Porsche 911 across model years
- Audi A5
- Porsche 911
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 A5 has more passenger space (84 vs. 70 cu ft); the Audi A5 has more cargo space (12 vs. 5 cu ft).
Among 43 2017 subcompact cars, the Audi A5 ranks 20th and the Porsche 911 22nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2017 Audi A5 or the 2017 Porsche 911?
Measured by cost to drive, the Audi A5. The Audi A5 is rated 26 MPG combined and the Porsche 911 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2017 Audi A5 vs. the Porsche 911 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,279 for the Audi A5 and $2,370 for the Porsche 911.
Which has more cargo space?
The Audi A5, with 12 cu ft of luggage volume versus 5 cu ft (EPA interior volume index).
Audi A5 vs Porsche 911 in other years
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