2025 head-to-head · Large Car
2025 BMW 7 Series Hybrid vs Mercedes-Benz S-Class Plug-in 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.
The 2025 Mercedes-Benz S-Class Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, it costs about $1,736 a year to fuel (63 MPGe + 23 MPG), versus $2,116 for the 2025 BMW 7 Series Hybrid (28 MPG). That's roughly $380 a year, or about $1,902 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 Plug-in Hybrid
Side by side
| BMW 7 Series Hybrid | Mercedes-Benz S-Class Plug-in Hybrid | |
|---|---|---|
| $2,116 | Your annual fuel cost | $1,736 |
| 28 MPG | Combined efficiency | 63 MPGe + 23 MPG |
| 25 MPG | City | 59 MPGe / 20 MPG |
| 31 MPG | Highway | 70 MPGe / 29 MPG |
| — | Electricity use (kWh/100 mi) | 53 kWh |
| — | Driving range | 470 mi |
| — | All-electric range | 48 mi |
| 110 cu ft | Passenger volume | 112 cu ft |
| 14 cu ft | Cargo volume | 8 cu ft |
| 317 g/mi | Tailpipe CO₂ (g/mi) | 106 g/mi |
| 6/10 | EPA fuel economy score | 7/10 |
| 6/10 | EPA greenhouse gas score | 9/10 |
| — | Charge time at 240V | 2.8 hrs |
| Hybrid | Powertrain | Plug-in hybrid |
| Premium gasoline | Fuel | Premium gas + electricity |
| 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 Plug-in Hybrid across model years
- BMW 7 Series Hybrid
- Mercedes-Benz S-Class Plug-in 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. 8 cu ft).
Among 25 2025 large cars, the BMW 7 Series Hybrid ranks 14th and the Mercedes-Benz S-Class Plug-in Hybrid 12th for lowest fuel cost.
The powertrains differ: the BMW 7 Series Hybrid is a full hybrid, while the Mercedes-Benz S-Class Plug-in Hybrid is a plug-in hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2025 BMW 7 Series Hybrid or the 2025 Mercedes-Benz S-Class Plug-in Hybrid?
Measured by cost to drive, the Mercedes-Benz S-Class Plug-in Hybrid. The BMW 7 Series Hybrid is rated 28 MPG combined and the Mercedes-Benz S-Class Plug-in Hybrid 63 MPGe + 23 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 BMW 7 Series Hybrid vs. the Mercedes-Benz S-Class Plug-in Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, about $2,116 for the BMW 7 Series Hybrid and $1,736 for the Mercedes-Benz S-Class Plug-in Hybrid.
Which has more cargo space?
The BMW 7 Series Hybrid, with 14 cu ft of luggage volume versus 8 cu ft (EPA interior volume index).
BMW 7 Series Hybrid vs Mercedes-Benz S-Class Plug-in Hybrid in other years
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