2027 head-to-head · Large Car

2027 BMW 7 Series Hybrid vs Mercedes-Benz S-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
$2,279/ year to fuel
26 MPG
✓ Cheaper to run
$2,576/ year to fuel
23 MPG

The 2027 BMW 7 Series Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,279 a year to fuel (26 MPG), versus $2,576 for the 2027 Mercedes-Benz S-Class Hybrid (23 MPG). That's roughly $297 a year, or about $1,486 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 7 Series Hybrid
  • Mercedes-Benz S-Class Hybrid

Side by side

BMW 7 Series HybridMercedes-Benz S-Class Hybrid
$2,279 Your annual fuel cost $2,576
26 MPG Combined efficiency 23 MPG
24 MPG City 20 MPG
30 MPG Highway 28 MPG
110 cu ft Passenger volume 112 cu ft
14 cu ft Cargo volume 13 cu ft
345 g/mi Tailpipe CO₂ (g/mi) 386 g/mi
5/10 EPA fuel economy score 5/10
5/10 EPA greenhouse gas score 5/10
Hybrid Powertrain Hybrid
Premium gasoline Fuel Premium gasoline
3.0L 6-cyl turbo Engine / motor 3.0L 6-cyl turbo
8-speed automatic 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 7 Series Hybrid vs Mercedes-Benz S-Class Hybrid across model years

  • BMW 7 Series Hybrid
  • Mercedes-Benz S-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 7 Series Hybrid has more cargo space (14 vs. 13 cu ft).

Among 16 2027 large cars, the BMW 7 Series Hybrid ranks 9th and the Mercedes-Benz S-Class Hybrid 10th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2027 BMW 7 Series Hybrid or the 2027 Mercedes-Benz S-Class Hybrid?

Measured by cost to drive, the BMW 7 Series Hybrid. The BMW 7 Series Hybrid is rated 26 MPG combined and the Mercedes-Benz S-Class Hybrid 23 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2027 BMW 7 Series Hybrid vs. the Mercedes-Benz S-Class Hybrid per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,279 for the BMW 7 Series Hybrid and $2,576 for the Mercedes-Benz S-Class Hybrid.

Which has more cargo space?

The BMW 7 Series Hybrid, with 14 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).

BMW 7 Series Hybrid vs Mercedes-Benz S-Class Hybrid in other years

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