2025 head-to-head · Large Car
2025 BMW 7 Series Plug-in 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.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 65 MPGe + 25 MPG
On fuel costs these two are nearly tied. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, the most efficient 2025 BMW 7 Series Plug-in Hybrid (65 MPGe + 25 MPG) costs about $1,729 a year to fuel and the 2025 Mercedes-Benz S-Class Plug-in Hybrid (63 MPGe + 23 MPG) about $1,736.
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 Plug-in Hybrid
Side by side
| BMW 7 Series Plug-in Hybrid | Mercedes-Benz S-Class Plug-in Hybrid | |
|---|---|---|
| $1,729 | Your annual fuel cost | $1,736 |
| 65 MPGe + 25 MPG | Combined efficiency | 63 MPGe + 23 MPG |
| 60 MPGe / 24 MPG | City | 59 MPGe / 20 MPG |
| 72 MPGe / 27 MPG | Highway | 70 MPGe / 29 MPG |
| 50 kWh | Electricity use (kWh/100 mi) | 53 kWh |
| 470 mi | Driving range | 470 mi |
| 34 mi | All-electric range | 48 mi |
| 109 cu ft | Passenger volume | 112 cu ft |
| 14 cu ft | Cargo volume | 8 cu ft |
| 132 g/mi | Tailpipe CO₂ (g/mi) | 106 g/mi |
| 7/10 | EPA fuel economy score | 7/10 |
| 9/10 | EPA greenhouse gas score | 9/10 |
| 3 hrs | Charge time at 240V | 2.8 hrs |
| Plug-in hybrid | Powertrain | Plug-in hybrid |
| Premium gas + electricity | Fuel | Premium gas + electricity |
| 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 Plug-in Hybrid across model years
- BMW 7 Series Plug-in 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 Plug-in Hybrid has more cargo space (14 vs. 8 cu ft).
Among 25 2025 large cars, the BMW 7 Series Plug-in Hybrid ranks 11th and the Mercedes-Benz S-Class Plug-in Hybrid 12th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2025 BMW 7 Series Plug-in Hybrid or the 2025 Mercedes-Benz S-Class Plug-in 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 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 Plug-in Hybrid vs. the Mercedes-Benz S-Class Plug-in 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 $1,736 for the Mercedes-Benz S-Class Plug-in Hybrid.
Which has more range?
The BMW 7 Series Plug-in Hybrid: about 470 miles versus 470 miles.
Which has more cargo space?
The BMW 7 Series Plug-in Hybrid, with 14 cu ft of luggage volume versus 8 cu ft (EPA interior volume index).
BMW 7 Series Plug-in Hybrid vs Mercedes-Benz S-Class Plug-in Hybrid in other years
More 2025 comparisons
BMW 7 Series Plug-in Hybrid vs…
Mercedes-Benz S-Class Plug-in Hybrid vs…
Or compare the 2025 BMW 7 Series Plug-in Hybrid with anything else: