2015 head-to-head · Midsize Car
2015 Audi A7 vs Infiniti Q40
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 supercharged · 8-speed automatic · 21 MPG
The 2015 Infiniti Q40 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 Audi A7 (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 A7
- Infiniti Q40
Side by side
| Audi A7 | Infiniti Q40 | |
|---|---|---|
| $2,821 | Your annual fuel cost | $2,693 |
| 21 MPG | Combined efficiency | 22 MPG |
| 18 MPG | City | 19 MPG |
| 28 MPG | Highway | 27 MPG |
| 94 cu ft | Passenger volume | 99 cu ft |
| 25 cu ft | Cargo volume | 14 cu ft |
| 416 g/mi | Tailpipe CO₂ (g/mi) | 412 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl supercharged | Engine / motor | 3.7L 6-cyl |
| 8-speed automatic | Transmission | 7-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 A7 vs Infiniti Q40 across model years
- Audi A7
- Infiniti Q40
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 Infiniti Q40 has more passenger space (99 vs. 94 cu ft); the Audi A7 has more cargo space (25 vs. 14 cu ft).
Among 69 2015 midsize cars, the Audi A7 ranks 56th and the Infiniti Q40 55th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 Audi A7 or the 2015 Infiniti Q40?
Measured by cost to drive, the Infiniti Q40. The Audi A7 is rated 21 MPG combined and the Infiniti Q40 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Audi A7 vs. the Infiniti Q40 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the Audi A7 and $2,693 for the Infiniti Q40.
Which has more cargo space?
The Audi A7, with 25 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).
More 2015 comparisons
Audi A7 vs…
Or compare the 2015 Audi A7 with anything else: