2023 head-to-head · Subcompact Car

2023 BMW i4 vs Mercedes-Benz E-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
2023 BMW i4Electric
$805/ year to fuel
113 MPGe
✓ Cheaper to run
$2,279/ year to fuel
26 MPG

The 2023 BMW i4 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 $805 a year to fuel (113 MPGe), versus $2,279 for the 2023 Mercedes-Benz E-Class Hybrid (26 MPG). That's roughly $1,474 a year, or about $7,371 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 i4
  • Mercedes-Benz E-Class Hybrid

Side by side

BMW i4Mercedes-Benz E-Class Hybrid
$805 Your annual fuel cost $2,279
113 MPGe Combined efficiency 26 MPG
115 MPGe City 23 MPG
111 MPGe Highway 31 MPG
29.8 kWh Electricity use (kWh/100 mi) —
256 mi Driving range —
90 cu ft Passenger volume 98 cu ft
10 cu ft Cargo volume 13 cu ft
0 g/mi Tailpipe CO₂ (g/mi) 343 g/mi
10/10 EPA fuel economy score 5/10
10/10 EPA greenhouse gas score 5/10
8 hrs Charge time at 240V —
Electric Powertrain Hybrid
Electricity Fuel Premium gasoline
Electric motor (250 kW) Engine / motor 3.0L 6-cyl turbo
Single-speed Transmission 9-speed automatic
RWD 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.

BMW i4 vs Mercedes-Benz E-Class Hybrid across model years

  • BMW i4
  • Mercedes-Benz E-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 Mercedes-Benz E-Class Hybrid has more passenger space (98 vs. 90 cu ft); the Mercedes-Benz E-Class Hybrid has more cargo space (13 vs. 10 cu ft).

Among 31 2023 subcompact cars, the BMW i4 ranks 1st and the Mercedes-Benz E-Class Hybrid 12th for lowest fuel cost.

Because the BMW i4 is fully electric, it has no tailpipe emissions and its running cost depends almost entirely on your electricity rate. Cheap overnight home charging widens its advantage over the Mercedes-Benz E-Class Hybrid; relying on DC fast chargers can erase it.

Frequently asked questions

Which is more fuel-efficient, the 2023 BMW i4 or the 2023 Mercedes-Benz E-Class Hybrid?

Measured by cost to drive, the BMW i4. The BMW i4 is rated 113 MPGe combined and the Mercedes-Benz E-Class Hybrid 26 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2023 BMW i4 vs. the Mercedes-Benz E-Class Hybrid per year?

At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $805 for the BMW i4 and $2,279 for the Mercedes-Benz E-Class Hybrid.

Which has more cargo space?

The Mercedes-Benz E-Class Hybrid, with 13 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).

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