2018 head-to-head · Midsize Car
2018 Audi A7 vs Infiniti Q50
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 · 23 MPG
The 2018 Infiniti Q50 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 $2,576 for the 2018 Audi A7 (23 MPG). That's roughly $206 a year, or about $1,030 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 Q50
Side by side
| Audi A7 | Infiniti Q50 | |
|---|---|---|
| $2,576 | Your annual fuel cost | $2,370 |
| 23 MPG | Combined efficiency | 25 MPG |
| 20 MPG | City | 23 MPG |
| 29 MPG | Highway | 30 MPG |
| 94 cu ft | Passenger volume | 102 cu ft |
| 25 cu ft | Cargo volume | 13 cu ft |
| 378 g/mi | Tailpipe CO₂ (g/mi) | 349 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 | 2.0L 4-cyl turbo |
| 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 Q50 across model years
- Audi A7
- Infiniti Q50
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 Q50 has more passenger space (102 vs. 94 cu ft); the Audi A7 has more cargo space (25 vs. 13 cu ft).
Among 74 2018 midsize cars, the Audi A7 ranks 62nd and the Infiniti Q50 59th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 Audi A7 or the 2018 Infiniti Q50?
Measured by cost to drive, the Infiniti Q50. The Audi A7 is rated 23 MPG combined and the Infiniti Q50 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Audi A7 vs. the Infiniti Q50 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,576 for the Audi A7 and $2,370 for the Infiniti Q50.
Which has more cargo space?
The Audi A7, with 25 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
Audi A7 vs Infiniti Q50 in other years
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