2017 head-to-head · Compact Car

2017 Audi A4 vs Mercedes-Benz CLA-Class

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$1,911/ year to fuel
31 MPG
✓ Cheaper to run
$2,043/ year to fuel
29 MPG

The 2017 Audi A4 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $1,911 a year to fuel (31 MPG), versus $2,043 for the 2017 Mercedes-Benz CLA-Class (29 MPG). That's roughly $132 a year, or about $659 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

  • Audi A4
  • Mercedes-Benz CLA-Class

Side by side

Audi A4Mercedes-Benz CLA-Class
$1,911 Your annual fuel cost $2,043
31 MPG Combined efficiency 29 MPG
27 MPG City 24 MPG
37 MPG Highway 36 MPG
92 cu ft Passenger volume 88 cu ft
13 cu ft Cargo volume 13 cu ft
284 g/mi Tailpipe CO₂ (g/mi) 311 g/mi
7/10 EPA fuel economy score 7/10
7/10 EPA greenhouse gas score 7/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 2.0L 4-cyl turbo
7-speed dual-clutch Transmission 7-speed dual-clutch
FWD Drivetrain FWD

✓ 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.

Audi A4 vs Mercedes-Benz CLA-Class across model years

  • Audi A4
  • Mercedes-Benz CLA-Class

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 A4 has more passenger space (92 vs. 88 cu ft).

Among 50 2017 compact cars, the Audi A4 ranks 30th and the Mercedes-Benz CLA-Class 34th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2017 Audi A4 or the 2017 Mercedes-Benz CLA-Class?

Measured by cost to drive, the Audi A4. The Audi A4 is rated 31 MPG combined and the Mercedes-Benz CLA-Class 29 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2017 Audi A4 vs. the Mercedes-Benz CLA-Class per year?

At 15,000 miles a year with $3.95/gal premium gas, about $1,911 for the Audi A4 and $2,043 for the Mercedes-Benz CLA-Class.

Audi A4 vs Mercedes-Benz CLA-Class in other years

More 2017 comparisons

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