Audi A5 vs Ford Mustang
The Audi A5 is the more efficient of the two: it reaches 30 mpg combined versus 26 mpg for the Ford Mustang, a 4 mpg advantage and costs about $200 less per year to fuel.
Across 5 measured categories, the Audi A5 leads in 4. Figures are EPA test data, not manufacturer claims.
2015–2026
Ford Mustang
Subcompact Cars · 133 configurations
Head-to-head specifications
| Metric | Audi A5 | Ford Mustang |
|---|---|---|
| Best combined MPG | 30 mpg ✓ | 26 mpg |
| Best city MPG | 26 mpg ✓ | 22 mpg |
| Best highway MPG | 36 mpg ✓ | 33 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $2,550 | $2,350 ✓ |
| Lowest CO2 output | 300 g/mi ✓ | 341 g/mi |
| Engines offered | SIDI;, SIDI, SIDI; Mild Hybrid, SIDI; FFV | 5.2, 5.0, SIDI & PFI, with Stop-Start |
| Transmissions | Automatic (AM-S7), Manual 6-spd, Automatic (S8) | Automatic (AM-S8), Manual 6-spd, Automatic (S10) |
| Drivetrains | All-Wheel Drive | Rear-Wheel Drive |
| Fuel types | Premium, Premium or E85 | Premium, Regular |
| EPA class | Subcompact Cars | Subcompact Cars |
| Years covered | 2015–2027 | 2015–2026 |
| Configurations on record | 40 | 133 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
A5 vs Mustang: common questions
Which is better on gas, the Audi A5 or the Ford Mustang?
The Audi A5 is the more efficient of the two: it reaches 30 mpg combined versus 26 mpg for the Ford Mustang, a 4 mpg advantage and costs about $200 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Ford Mustang runs about $2,350 a year in fuel at its most efficient configuration, versus about $2,550 for the Audi A5 — a difference of roughly $200 per year.
What engines do the A5 and Mustang offer?
Audi A5: SIDI;, SIDI, SIDI; Mild Hybrid, SIDI; FFV. Ford Mustang: 5.2, 5.0, SIDI & PFI, with Stop-Start.
Are they in the same vehicle class?
Yes — the EPA classifies both the Audi A5 and the Ford Mustang as Subcompact Cars, so they compete directly.
More A5 comparisons
Comparison id: audi-a5-vs-ford-mustang