Aston Martin DBX 707 Fuel Economy (MPG)

Name: Aston Martin DBX 707 MPG & Fuel Economy
Creator: AutoSpecData
License: https://creativecommons.org/licenses/by/4.0/

What is the real-world gas mileage of a 2026 Aston Martin DBX 707?

The 2026 Aston Martin DBX 707 gets up to 17 MPG combined (15 city / 20 highway) in EPA testing.

Latest model year (2026):

The Aston Martin DBX 707 gets up to 17 MPG combined (15 city / 20 highway) in the Auto 9-spd, 8 cyl, 4.0 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026

Overview MPG Engine Specs Fuel Cost Transmission Drivetrain Vehicle Class Maintenance

Aston Martin DBX 707 MPG — All Years

Year	Trim	Engine	Fuel	City (MPG)	Hwy (MPG)	Combined (MPG)
2026	Auto 9-spd, 8 cyl, 4.0 L	8 4.0L	Premium Gasoline	15	20	17
2025	Auto 9-spd, 8 cyl, 4.0 L	8 4.0L	Premium Gasoline	15	20	17
2024	Auto 9-spd, 8 cyl, 4.0 L	8 4.0L	Premium Gasoline	15	20	17
2023	Auto 9-spd, 8 cyl, 4.0 L	8 4.0L	Premium Gasoline	15	20	17

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Aston Martin DBX 707 data analysis

How Aston Martin DBX 707 combined fuel economy varies

Across 4 configurations recorded for the 2023 through 2026 Aston Martin DBX 707, combined fuel economy runs from 17 MPG to 17 MPG. The strongest figure belongs to the 2023 Aston Martin DBX 707 (Auto 9-spd, 8 cyl, 4.0 L) at 17 MPG, and the weakest to the 2026 car (Auto 9-spd, 8 cyl, 4.0 L) at 17 MPG — a spread of 0%. The narrow spread means any year of the Aston Martin DBX 707 in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.

What changed for 2026

Average combined fuel economy for the 2026 Aston Martin DBX 707 is 17 MPG, against 17 MPG for the 2025 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Aston Martin DBX 707 data

This page lists every 2023 through 2026 Aston Martin DBX 707 record we hold for this measurement — 4 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Where these Aston Martin DBX 707 figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Aston Martin DBX 707 record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speed	EPA highway spec	AutoSpecData adjusted MPG	Fuel you lose
60 mph	20 MPG	20 MPG	0%
65 mph	20 MPG	18.3 MPG	9%
70 mph	20 MPG	16.7 MPG	17%
75 mph	20 MPG	15.3 MPG	24%
80 mph	20 MPG	14 MPG	30%

Our Real-World Speed MPG Adjuster re-scales the Aston Martin DBX 707 EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About DBX 707 MPG

What is the MPG of the Aston Martin DBX 707?

The Aston Martin DBX 707 gets up to 17 MPG combined (15 city / 20 highway) in the 2026 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Aston Martin DBX 707 trim has the best fuel economy?

The Auto 9-spd, 8 cyl, 4.0 L trim offers the best combined fuel economy at 17 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.