2021 head-to-head · Midsize & Large SUV
2021 Aston Martin DBX V8 vs Bentley Bentayga
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 Bentley Bentayga is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $3,292 a year to fuel (18 MPG), versus $3,950 for the 2021 Aston Martin DBX V8 (15 MPG). That's roughly $658 a year, or about $3,292 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
- Bentley Bentayga
Side by side
| Aston Martin DBX V8 | Bentley Bentayga | |
|---|---|---|
| $3,950 | Your annual fuel cost | $3,292 |
| 15 MPG | Combined efficiency | 18 MPG |
| 14 MPG | City | 15 MPG |
| 18 MPG | Highway | 24 MPG |
| 572 g/mi | Tailpipe CO₂ (g/mi) | 497 g/mi |
| 2/10 | EPA fuel economy score | 3/10 |
| 2/10 | EPA greenhouse gas score | 3/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 4.0L 8-cyl turbo |
| 9-speed automatic | Transmission | 8-speed automatic |
| 4WD | Drivetrain | AWD |
✓ 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 Bentley Bentayga across model years
- Aston Martin DBX V8
- Bentley Bentayga
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 Bentley Bentayga 53rd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2021 Aston Martin DBX V8 or the 2021 Bentley Bentayga?
Measured by cost to drive, the Bentley Bentayga. The Aston Martin DBX V8 is rated 15 MPG combined and the Bentley Bentayga 18 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Aston Martin DBX V8 vs. the Bentley Bentayga per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,950 for the Aston Martin DBX V8 and $3,292 for the Bentley Bentayga.
Aston Martin DBX V8 vs Bentley Bentayga in other years
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