2023 head-to-head · Compact Car

2023 BMW 4 Series 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
$2,116/ year to fuel
28 MPG
✓ Cheaper to run
$2,043/ year to fuel
29 MPG

The 2023 Mercedes-Benz CLA-Class is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,043 a year to fuel (29 MPG), versus $2,116 for the 2023 BMW 4 Series (28 MPG). That's roughly $73 a year, or about $365 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

  • BMW 4 Series
  • Mercedes-Benz CLA-Class

Side by side

BMW 4 SeriesMercedes-Benz CLA-Class
$2,116 Your annual fuel cost $2,043
28 MPG Combined efficiency 29 MPG
25 MPG City 25 MPG
34 MPG Highway 36 MPG
86 cu ft Passenger volume 89 cu ft
12 cu ft Cargo volume 12 cu ft
313 g/mi Tailpipe CO₂ (g/mi) 309 g/mi
6/10 EPA fuel economy score 6/10
6/10 EPA greenhouse gas score 6/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 2.0L 4-cyl turbo
8-speed automatic Transmission 7-speed dual-clutch
RWD 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.

BMW 4 Series vs Mercedes-Benz CLA-Class across model years

  • BMW 4 Series
  • 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 Mercedes-Benz CLA-Class has more passenger space (89 vs. 86 cu ft).

Among 31 2023 compact cars, the BMW 4 Series ranks 20th and the Mercedes-Benz CLA-Class 18th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2023 BMW 4 Series or the 2023 Mercedes-Benz CLA-Class?

Measured by cost to drive, the Mercedes-Benz CLA-Class. The BMW 4 Series is rated 28 MPG combined and the Mercedes-Benz CLA-Class 29 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2023 BMW 4 Series vs. the Mercedes-Benz CLA-Class per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,116 for the BMW 4 Series and $2,043 for the Mercedes-Benz CLA-Class.

BMW 4 Series vs Mercedes-Benz CLA-Class in other years

More 2023 comparisons

Or compare the 2023 BMW 4 Series with anything else:

Keep exploring