2015 head-to-head · Midsize Car

2015 Infiniti Q40 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
$2,693/ year to fuel
22 MPG
✓ Cheaper to run
$2,370/ year to fuel
25 MPG

RWD · 3.5L 6-cyl · 7-speed automatic · 25 MPG

The 2015 Mercedes-Benz E-Class Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,370 a year to fuel (25 MPG), versus $2,693 for the 2015 Infiniti Q40 (22 MPG). That's roughly $323 a year, or about $1,616 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

  • Infiniti Q40
  • Mercedes-Benz E-Class Hybrid

Side by side

Infiniti Q40Mercedes-Benz E-Class Hybrid
$2,693 Your annual fuel cost $2,370
22 MPG Combined efficiency 25 MPG
19 MPG City 24 MPG
27 MPG Highway 28 MPG
99 cu ft Passenger volume 98 cu ft
14 cu ft Cargo volume 13 cu ft
412 g/mi Tailpipe CO₂ (g/mi) 350 g/mi
5/10 EPA fuel economy score 6/10
5/10 EPA greenhouse gas score 6/10
Gas Powertrain Hybrid
Premium gasoline Fuel Premium gasoline
3.7L 6-cyl Engine / motor 3.5L 6-cyl
7-speed automatic Transmission 7-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.

Infiniti Q40 vs Mercedes-Benz E-Class Hybrid across model years

  • Infiniti Q40
  • 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 Infiniti Q40 has more cargo space (14 vs. 13 cu ft).

Among 69 2015 midsize cars, the Infiniti Q40 ranks 55th and the Mercedes-Benz E-Class Hybrid 49th for lowest fuel cost.

The powertrains differ: the Infiniti Q40 is a conventional gas model, while the Mercedes-Benz E-Class Hybrid is a full hybrid.

Frequently asked questions

Which is more fuel-efficient, the 2015 Infiniti Q40 or the 2015 Mercedes-Benz E-Class Hybrid?

Measured by cost to drive, the Mercedes-Benz E-Class Hybrid. The Infiniti Q40 is rated 22 MPG combined and the Mercedes-Benz E-Class Hybrid 25 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2015 Infiniti Q40 vs. the Mercedes-Benz E-Class Hybrid per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,693 for the Infiniti Q40 and $2,370 for the Mercedes-Benz E-Class Hybrid.

Which has more cargo space?

The Infiniti Q40, with 14 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).

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