2020 head-to-head · Compact Car

2020 BMW 5 Series Plug-in Hybrid vs Mercedes-Benz CLS-Class Hybrid

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
$1,757/ year to fuel
69 MPGe + 27 MPG
✓ Cheaper to run
$2,279/ year to fuel
26 MPG

The 2020 BMW 5 Series Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, it costs about $1,757 a year to fuel (69 MPGe + 27 MPG), versus $2,279 for the 2020 Mercedes-Benz CLS-Class Hybrid (26 MPG). That's roughly $522 a year, or about $2,611 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 5 Series Plug-in Hybrid
  • Mercedes-Benz CLS-Class Hybrid

Side by side

BMW 5 Series Plug-in HybridMercedes-Benz CLS-Class Hybrid
$1,757 Your annual fuel cost $2,279
69 MPGe + 27 MPG Combined efficiency 26 MPG
65 MPGe / 25 MPG City 24 MPG
75 MPGe / 31 MPG Highway 31 MPG
47 kWh Electricity use (kWh/100 mi) —
350 mi Driving range —
21 mi All-electric range —
99 cu ft Passenger volume 93 cu ft
10 cu ft Cargo volume 12 cu ft
170 g/mi Tailpipe CO₂ (g/mi) 334 g/mi
8/10 EPA fuel economy score 5/10
10/10 EPA greenhouse gas score 5/10
3 hrs Charge time at 240V —
Plug-in hybrid Powertrain Hybrid
Premium gas + electricity Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 3.0L 6-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.

BMW 5 Series Plug-in Hybrid vs Mercedes-Benz CLS-Class Hybrid across model years

  • BMW 5 Series Plug-in Hybrid
  • Mercedes-Benz CLS-Class Hybrid

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 BMW 5 Series Plug-in Hybrid has more passenger space (99 vs. 93 cu ft); the Mercedes-Benz CLS-Class Hybrid has more cargo space (12 vs. 10 cu ft).

Among 34 2020 compact cars, the BMW 5 Series Plug-in Hybrid ranks 18th and the Mercedes-Benz CLS-Class Hybrid 28th for lowest fuel cost.

The powertrains differ: the BMW 5 Series Plug-in Hybrid is a plug-in hybrid, while the Mercedes-Benz CLS-Class Hybrid is a full hybrid.

Frequently asked questions

Which is more fuel-efficient, the 2020 BMW 5 Series Plug-in Hybrid or the 2020 Mercedes-Benz CLS-Class Hybrid?

Measured by cost to drive, the BMW 5 Series Plug-in Hybrid. The BMW 5 Series Plug-in Hybrid is rated 69 MPGe + 27 MPG combined and the Mercedes-Benz CLS-Class Hybrid 26 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2020 BMW 5 Series Plug-in Hybrid vs. the Mercedes-Benz CLS-Class Hybrid per year?

At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $1,757 for the BMW 5 Series Plug-in Hybrid and $2,279 for the Mercedes-Benz CLS-Class Hybrid.

Which has more cargo space?

The Mercedes-Benz CLS-Class Hybrid, with 12 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).

BMW 5 Series Plug-in Hybrid vs Mercedes-Benz CLS-Class Hybrid in other years

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