2016 head-to-head · Midsize Car vs Wagon
2016 Audi S6 vs Infiniti QX50
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 · 7-speed dual-clutch · 21 MPG
The 2016 Audi S6 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,821 a year to fuel (21 MPG), versus $2,962 for the 2016 Infiniti QX50 (20 MPG). That's roughly $141 a year, or about $705 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 S6
- Infiniti QX50
Side by side
| Audi S6 | Infiniti QX50 | |
|---|---|---|
| $2,821 | Your annual fuel cost | $2,962 |
| 21 MPG | Combined efficiency | 20 MPG |
| 18 MPG | City | 17 MPG |
| 27 MPG | Highway | 24 MPG |
| 98 cu ft | Passenger volume | 97 cu ft |
| 16 cu ft | Cargo volume | 19 cu ft |
| 423 g/mi | Tailpipe CO₂ (g/mi) | 448 g/mi |
| 5/10 | EPA fuel economy score | 4/10 |
| 5/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 3.7L 6-cyl |
| 7-speed dual-clutch | 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 S6 vs Infiniti QX50 across model years
- Audi S6
- Infiniti QX50
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 QX50 has more cargo space (19 vs. 16 cu ft).
Frequently asked questions
Which is more fuel-efficient, the 2016 Audi S6 or the 2016 Infiniti QX50?
Measured by cost to drive, the Audi S6. The Audi S6 is rated 21 MPG combined and the Infiniti QX50 20 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2016 Audi S6 vs. the Infiniti QX50 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the Audi S6 and $2,962 for the Infiniti QX50.
Which has more cargo space?
The Infiniti QX50, with 19 cu ft of luggage volume versus 16 cu ft (EPA interior volume index).
Audi S6 vs Infiniti QX50 in other years
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