Ford Mustang vs Audi S5
The Ford Mustang is the more efficient of the two: it reaches 26 mpg combined versus 24 mpg for the Audi S5, a 2 mpg advantage and costs about $800 less per year to fuel.
Across 5 measured categories, the Ford Mustang leads in 5. Figures are EPA test data, not manufacturer claims.
2015–2026
Ford Mustang
Subcompact Cars · 133 configurations
Head-to-head specifications
| Metric | Ford Mustang | Audi S5 |
|---|---|---|
| Best combined MPG | 26 mpg ✓ | 24 mpg |
| Best city MPG | 22 mpg ✓ | 21 mpg |
| Best highway MPG | 33 mpg ✓ | 30 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $2,350 ✓ | $3,150 |
| Lowest CO2 output | 341 g/mi ✓ | 363 g/mi |
| Engines offered | 5.2, 5.0, SIDI & PFI, with Stop-Start | SIDI |
| Transmissions | Automatic (AM-S8), Manual 6-spd, Automatic (S10) | Automatic (AM-S7), Automatic (S8), Automatic (AM-S8) |
| Drivetrains | Rear-Wheel Drive | All-Wheel Drive, 4-Wheel Drive |
| Fuel types | Premium, Regular | Premium |
| EPA class | Subcompact Cars | Subcompact Cars |
| Years covered | 2015–2026 | 2015–2026 |
| Configurations on record | 133 | 33 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Mustang vs S5: common questions
Which is better on gas, the Ford Mustang or the Audi S5?
The Ford Mustang is the more efficient of the two: it reaches 26 mpg combined versus 24 mpg for the Audi S5, a 2 mpg advantage and costs about $800 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 $3,150 for the Audi S5 — a difference of roughly $800 per year.
What engines do the Mustang and S5 offer?
Ford Mustang: 5.2, 5.0, SIDI & PFI, with Stop-Start. Audi S5: SIDI.
Are they in the same vehicle class?
Yes — the EPA classifies both the Ford Mustang and the Audi S5 as Subcompact Cars, so they compete directly.
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Comparison id: ford-mustang-vs-audi-s5