2015 head-to-head · Compact Car
2015 Acura ILX vs Audi S4
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2015 Acura ILX is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,116 a year to fuel (28 MPG), versus $2,821 for the 2015 Audi S4 (21 MPG). That's roughly $705 a year, or about $3,527 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
- Acura ILX
- Audi S4
Side by side
| Acura ILX | Audi S4 | |
|---|---|---|
| $2,116 | Your annual fuel cost | $2,821 |
| 28 MPG | Combined efficiency | 21 MPG |
| 24 MPG | City | 18 MPG |
| 34 MPG | Highway | 28 MPG |
| 89 cu ft | Passenger volume | 90 cu ft |
| 12 cu ft | Cargo volume | 13 cu ft |
| 321 g/mi | Tailpipe CO₂ (g/mi) | 413 g/mi |
| 7/10 | EPA fuel economy score | 5/10 |
| 7/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl | Engine / motor | 3.0L 6-cyl supercharged |
| 5-speed automatic | Transmission | 7-speed dual-clutch |
| FWD | Drivetrain | AWD |
✓ 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.
Acura ILX vs Audi S4 across model years
- Acura ILX
- Audi S4
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 Audi S4 has more cargo space (13 vs. 12 cu ft).
Among 52 2015 compact cars, the Acura ILX ranks 41st and the Audi S4 50th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 Acura ILX or the 2015 Audi S4?
Measured by cost to drive, the Acura ILX. The Acura ILX is rated 28 MPG combined and the Audi S4 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Acura ILX vs. the Audi S4 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,116 for the Acura ILX and $2,821 for the Audi S4.
Which has more cargo space?
The Audi S4, with 13 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
Acura ILX vs Audi S4 in other years
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