2018 head-to-head · Compact Car

2018 Cadillac ATS-V vs Mercedes-Benz CLS-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
$2,962/ year to fuel
20 MPG
✓ Cheaper to run
$2,821/ year to fuel
21 MPG

The 2018 Mercedes-Benz CLS-Class is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,821 a year to fuel (21 MPG), versus $2,962 for the 2018 Cadillac ATS-V (20 MPG). That's roughly $141 a year, or about $705 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

  • Cadillac ATS-V
  • Mercedes-Benz CLS-Class

Side by side

Cadillac ATS-VMercedes-Benz CLS-Class
$2,962 Your annual fuel cost $2,821
20 MPG Combined efficiency 21 MPG
17 MPG City 18 MPG
25 MPG Highway 26 MPG
96 cu ft Passenger volume 92 cu ft
14 cu ft Cargo volume 11 cu ft
469 g/mi Tailpipe CO₂ (g/mi) 425 g/mi
4/10 EPA fuel economy score 4/10
4/10 EPA greenhouse gas score 4/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
3.6L 6-cyl turbo Engine / motor 4.7L 8-cyl turbo
8-speed automatic Transmission 9-speed automatic
RWD Drivetrain RWD

✓ 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.

Cadillac ATS-V vs Mercedes-Benz CLS-Class across model years

  • Cadillac ATS-V
  • Mercedes-Benz CLS-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 Cadillac ATS-V has more passenger space (96 vs. 92 cu ft); the Cadillac ATS-V has more cargo space (14 vs. 11 cu ft).

Among 44 2018 compact cars, the Cadillac ATS-V ranks 43rd and the Mercedes-Benz CLS-Class 42nd for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2018 Cadillac ATS-V or the 2018 Mercedes-Benz CLS-Class?

Measured by cost to drive, the Mercedes-Benz CLS-Class. The Cadillac ATS-V is rated 20 MPG combined and the Mercedes-Benz CLS-Class 21 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2018 Cadillac ATS-V vs. the Mercedes-Benz CLS-Class per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,962 for the Cadillac ATS-V and $2,821 for the Mercedes-Benz CLS-Class.

Which has more cargo space?

The Cadillac ATS-V, with 14 cu ft of luggage volume versus 11 cu ft (EPA interior volume index).

Cadillac ATS-V vs Mercedes-Benz CLS-Class in other years

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