2023 head-to-head · Subcompact Car
2023 Aston Martin DBS vs Porsche 911
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
RWD · 5.2L 12-cyl turbo · 8-speed automatic · 17 MPG
The 2023 Porsche 911 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,821 a year to fuel (21 MPG), versus $3,485 for the 2023 Aston Martin DBS (17 MPG). That's roughly $664 a year, or about $3,319 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 DBS
- Porsche 911
Side by side
| Aston Martin DBS | Porsche 911 | |
|---|---|---|
| $3,485 | Your annual fuel cost | $2,821 |
| 17 MPG | Combined efficiency | 21 MPG |
| 14 MPG | City | 18 MPG |
| 22 MPG | Highway | 25 MPG |
| 72 cu ft | Passenger volume | 70 cu ft |
| 9 cu ft | Cargo volume | 5 cu ft |
| 522 g/mi | Tailpipe CO₂ (g/mi) | 425 g/mi |
| 3/10 | EPA fuel economy score | 4/10 |
| 3/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 5.2L 12-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 7-speed manual |
| RWD | 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 DBS vs Porsche 911 across model years
- Aston Martin DBS
- Porsche 911
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
Per EPA interior volume figures, the Aston Martin DBS has more cargo space (9 vs. 5 cu ft).
Among 31 2023 subcompact cars, the Aston Martin DBS ranks 30th and the Porsche 911 22nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2023 Aston Martin DBS or the 2023 Porsche 911?
Measured by cost to drive, the Porsche 911. The Aston Martin DBS is rated 17 MPG combined and the Porsche 911 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2023 Aston Martin DBS vs. the Porsche 911 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,485 for the Aston Martin DBS and $2,821 for the Porsche 911.
Which has more cargo space?
The Aston Martin DBS, with 9 cu ft of luggage volume versus 5 cu ft (EPA interior volume index).
Aston Martin DBS vs Porsche 911 in other years
More 2023 comparisons
Aston Martin DBS vs…
Or compare the 2023 Aston Martin DBS with anything else: