2025 head-to-head · Large Car
2025 BMW 7 Series Plug-in 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.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 65 MPGe + 25 MPG
The 2025 BMW 7 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 $1,729 a year to fuel (65 MPGe + 25 MPG), versus $2,469 for the 2025 Mercedes-Benz S-Class Hybrid (24 MPG). That's roughly $739 a year, or about $3,697 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 Plug-in Hybrid
- Mercedes-Benz S-Class Hybrid
Side by side
| BMW 7 Series Plug-in Hybrid | Mercedes-Benz S-Class Hybrid | |
|---|---|---|
| $1,729 | Your annual fuel cost | $2,469 |
| 65 MPGe + 25 MPG | Combined efficiency | 24 MPG |
| 60 MPGe / 24 MPG | City | 21 MPG |
| 72 MPGe / 27 MPG | Highway | 31 MPG |
| 50 kWh | Electricity use (kWh/100 mi) | — |
| 470 mi | Driving range | — |
| 34 mi | All-electric range | — |
| 109 cu ft | Passenger volume | 112 cu ft |
| 14 cu ft | Cargo volume | 13 cu ft |
| 132 g/mi | Tailpipe CO₂ (g/mi) | 364 g/mi |
| 7/10 | EPA fuel economy score | 5/10 |
| 9/10 | EPA greenhouse gas score | 5/10 |
| 3 hrs | Charge time at 240V | — |
| Plug-in hybrid | Powertrain | Hybrid |
| Premium gas + electricity | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 9-speed automatic |
| AWD | 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 Plug-in Hybrid vs Mercedes-Benz S-Class Hybrid across model years
- BMW 7 Series Plug-in 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 Plug-in Hybrid has more cargo space (14 vs. 13 cu ft).
Among 25 2025 large cars, the BMW 7 Series Plug-in Hybrid ranks 11th and the Mercedes-Benz S-Class Hybrid 16th for lowest fuel cost.
The powertrains differ: the BMW 7 Series Plug-in Hybrid is a plug-in hybrid, while the Mercedes-Benz S-Class Hybrid is a full hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2025 BMW 7 Series Plug-in Hybrid or the 2025 Mercedes-Benz S-Class Hybrid?
Measured by cost to drive, the BMW 7 Series Plug-in Hybrid. The BMW 7 Series Plug-in Hybrid is rated 65 MPGe + 25 MPG combined and the Mercedes-Benz S-Class Hybrid 24 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 BMW 7 Series Plug-in Hybrid vs. the Mercedes-Benz S-Class Hybrid per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $1,729 for the BMW 7 Series Plug-in Hybrid and $2,469 for the Mercedes-Benz S-Class Hybrid.
Which has more cargo space?
The BMW 7 Series Plug-in Hybrid, with 14 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
BMW 7 Series Plug-in Hybrid vs Mercedes-Benz S-Class Hybrid in other years
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