2021 head-to-head · Compact Car
2021 Acura TLX 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.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 23 MPG
The 2021 Acura TLX is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,370 a year to fuel (25 MPG), versus $2,576 for the 2021 Audi S4 (23 MPG). That's roughly $206 a year, or about $1,030 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 TLX
- Audi S4
Side by side
| Acura TLX | Audi S4 | |
|---|---|---|
| $2,370 | Your annual fuel cost | $2,576 |
| 25 MPG | Combined efficiency | 23 MPG |
| 22 MPG | City | 20 MPG |
| 30 MPG | Highway | 28 MPG |
| 93 cu ft | Passenger volume | 92 cu ft |
| 14 cu ft | Cargo volume | 12 cu ft |
| 357 g/mi | Tailpipe CO₂ (g/mi) | 380 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 10-speed automatic | Transmission | 8-speed automatic |
| 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 TLX vs Audi S4 across model years
- Acura TLX
- 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 Acura TLX has more cargo space (14 vs. 12 cu ft).
Among 37 2021 compact cars, the Acura TLX ranks 30th and the Audi S4 32nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2021 Acura TLX or the 2021 Audi S4?
Measured by cost to drive, the Acura TLX. The Acura TLX is rated 25 MPG combined and the Audi S4 23 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Acura TLX vs. the Audi S4 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,370 for the Acura TLX and $2,576 for the Audi S4.
Which has more cargo space?
The Acura TLX, with 14 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
Acura TLX vs Audi S4 in other years
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