Aston Martin · Standard SUVs · Gasoline
Aston Martin DBX 727: MPG and annual fuel cost, 2026
Rated at 16 MPG combined for 2026, the Aston Martin DBX 727 is tied for 84th of 90 standard SUVs, in the bottom quarter.
- 16MPG combinedtied 84th of 90 in class
- $5,150a year in fueltied 84th of 90 in class
- 546g/mile CO2
Where it stands
Compared only with the gasoline models of its class it is tied for 32nd of 36 gasoline standard SUVs, in the bottom quarter. The median of that narrower group is 19.5 MPG, against 22.5 MPG for all standard SUVs together.
Across every class it is tied for 169th of 180 gasoline models, in the bottom quarter.
Aston Martin has 7 models in the 2026 data. This one ranks 5th of them on combined rating, against a make median of 17 MPG.
In its class, just ahead of it is the Aston Martin DBX 707 at 17 MPG and just behind it is the BMW XM at 14 MPG.
Fuel cost and CO2
Assuming 15,000 miles a year with 55% of them in the city and premium gasoline at $5.48 per gallon, fuelling the most efficient version comes to about $5,150 a year. That is $1,775 more than the standard SUVs median of $3,375.
Tailpipe CO2 is 546 g/mile, 159 g/mile above the standard SUVs median of 387.
Rated versions
In the city the most efficient version is rated 14 and on the highway 19, 5 better on the open road. The data lists one version for 2026: DBX 727: 4.0 L, 8 cyl, Automatic 9-spd, 4WD.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile |
|---|---|---|---|---|---|
| DBX 727: 4.0 L, 8 cyl, Automatic 9-spd, 4WD | 16 | 14 | 19 | $5,150 | 546 |
Year by year
The Aston Martin DBX 727 appears in the data for model year 2026 only, one of the 8 model years from 2019 to 2026.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2026 | 1 | 16 | 16 | $5,150 | 546 | 22.5 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| Bentley Bentayga | Gasoline | 16 | $5,150 | 2026 |
| Audi RS Q8 | Hybrid | 16 | $5,150 | 2026 |
| Cadillac Escalade | Gasoline | 17 | $4,850 | 2026 |
| GMC Yukon | Gasoline | 17 | $3,950 | 2026 |
| Lexus GX | Gasoline | 17 | $4,850 | 2026 |
Compare and rank
Rankings: Standard SUVs, Gasoline, Aston Martin, Gasoline standard SUVs.
Data: US EPA and DOE, as prepared in methods and data.