2021 head-to-head · Midsize & Large SUV
2021 Aston Martin DBX V8 vs Infiniti QX80
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
4WD · 4.0L 8-cyl turbo · 9-speed automatic · 15 MPG
The 2021 Infiniti QX80 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $3,703 a year to fuel (16 MPG), versus $3,950 for the 2021 Aston Martin DBX V8 (15 MPG). That's roughly $247 a year, or about $1,234 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
- Aston Martin DBX V8
- Infiniti QX80
Side by side
| Aston Martin DBX V8 | Infiniti QX80 | |
|---|---|---|
| $3,950 | Your annual fuel cost | $3,703 |
| 15 MPG | Combined efficiency | 16 MPG |
| 14 MPG | City | 14 MPG |
| 18 MPG | Highway | 20 MPG |
| 572 g/mi | Tailpipe CO₂ (g/mi) | 554 g/mi |
| 2/10 | EPA fuel economy score | 2/10 |
| 2/10 | EPA greenhouse gas score | 2/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 5.6L 8-cyl |
| 9-speed automatic | Transmission | 7-speed automatic |
| 4WD | 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.
Aston Martin DBX V8 vs Infiniti QX80 across model years
- Aston Martin DBX V8
- Infiniti QX80
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
Among 65 2021 midsize & large SUVs, the Aston Martin DBX V8 ranks 63rd and the Infiniti QX80 61st for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2021 Aston Martin DBX V8 or the 2021 Infiniti QX80?
Measured by cost to drive, the Infiniti QX80. The Aston Martin DBX V8 is rated 15 MPG combined and the Infiniti QX80 16 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Aston Martin DBX V8 vs. the Infiniti QX80 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,950 for the Aston Martin DBX V8 and $3,703 for the Infiniti QX80.
Aston Martin DBX V8 vs Infiniti QX80 in other years
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