2026 head-to-head · Midsize & Large SUV
2026 Aston Martin DBX 727 vs Bentley Bentayga Plug-in Hybrid
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 · 16 MPG
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 42 MPGe + 21 MPG
The 2026 Bentley Bentayga Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, it costs about $2,277 a year to fuel (42 MPGe + 21 MPG), versus $3,703 for the 2026 Aston Martin DBX 727 (16 MPG). That's roughly $1,426 a year, or about $7,132 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 727
- Bentley Bentayga Plug-in Hybrid
Side by side
| Aston Martin DBX 727 | Bentley Bentayga Plug-in Hybrid | |
|---|---|---|
| $3,703 | Your annual fuel cost | $2,277 |
| 16 MPG | Combined efficiency | 42 MPGe + 21 MPG |
| 14 MPG | City | 41 MPGe / 19 MPG |
| 19 MPG | Highway | 43 MPGe / 23 MPG |
| — | Electricity use (kWh/100 mi) | 67 kWh |
| — | Driving range | 440 mi |
| — | All-electric range | 20 mi |
| 105 cu ft | Passenger volume | — |
| 29 cu ft | Cargo volume | — |
| 546 g/mi | Tailpipe CO₂ (g/mi) | 206 g/mi |
| 3/10 | EPA fuel economy score | 6/10 |
| 3/10 | EPA greenhouse gas score | 7/10 |
| — | Charge time at 240V | 3 hrs |
| Gas | Powertrain | Plug-in hybrid |
| Premium gasoline | Fuel | Premium gas + electricity |
| 4.0L 8-cyl turbo | Engine / motor | 3.0L 6-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 727 vs Bentley Bentayga Plug-in Hybrid across model years
- Aston Martin DBX 727
- Bentley Bentayga Plug-in Hybrid
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 91 2026 midsize & large SUVs, the Aston Martin DBX 727 ranks 90th and the Bentley Bentayga Plug-in Hybrid 46th for lowest fuel cost.
The powertrains differ: the Aston Martin DBX 727 is a conventional gas model, while the Bentley Bentayga Plug-in Hybrid is a plug-in hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2026 Aston Martin DBX 727 or the 2026 Bentley Bentayga Plug-in Hybrid?
Measured by cost to drive, the Bentley Bentayga Plug-in Hybrid. The Aston Martin DBX 727 is rated 16 MPG combined and the Bentley Bentayga Plug-in Hybrid 42 MPGe + 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 Aston Martin DBX 727 vs. the Bentley Bentayga Plug-in Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, about $3,703 for the Aston Martin DBX 727 and $2,277 for the Bentley Bentayga Plug-in Hybrid.
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