2020 head-to-head · Large Car
2020 BMW 7 Series Plug-in Hybrid vs Mercedes-Benz S-Class
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 · 56 MPGe + 22 MPG
The 2020 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 $2,277 a year to fuel (56 MPGe + 22 MPG), versus $2,693 for the 2020 Mercedes-Benz S-Class (22 MPG). That's roughly $416 a year, or about $2,082 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
Side by side
| BMW 7 Series Plug-in Hybrid | Mercedes-Benz S-Class | |
|---|---|---|
| $2,277 | Your annual fuel cost | $2,693 |
| 56 MPGe + 22 MPG | Combined efficiency | 22 MPG |
| 52 MPGe / 19 MPG | City | 19 MPG |
| 61 MPGe / 26 MPG | Highway | 28 MPG |
| 61 kWh | Electricity use (kWh/100 mi) | — |
| 290 mi | Driving range | — |
| 16 mi | All-electric range | — |
| 114 cu ft | Passenger volume | 112 cu ft |
| 10 cu ft | Cargo volume | 12 cu ft |
| 245 g/mi | Tailpipe CO₂ (g/mi) | 403 g/mi |
| 6/10 | EPA fuel economy score | 4/10 |
| 8/10 | EPA greenhouse gas score | 4/10 |
| 4 hrs | Charge time at 240V | — |
| Plug-in hybrid | Powertrain | Gas |
| 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 | 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.
BMW 7 Series Plug-in Hybrid vs Mercedes-Benz S-Class across model years
- BMW 7 Series Plug-in Hybrid
- Mercedes-Benz S-Class
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 Mercedes-Benz S-Class has more cargo space (12 vs. 10 cu ft).
Among 32 2020 large cars, the BMW 7 Series Plug-in Hybrid ranks 20th and the Mercedes-Benz S-Class 24th 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 is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2020 BMW 7 Series Plug-in Hybrid or the 2020 Mercedes-Benz S-Class?
Measured by cost to drive, the BMW 7 Series Plug-in Hybrid. The BMW 7 Series Plug-in Hybrid is rated 56 MPGe + 22 MPG combined and the Mercedes-Benz S-Class 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2020 BMW 7 Series Plug-in Hybrid vs. the Mercedes-Benz S-Class per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $2,277 for the BMW 7 Series Plug-in Hybrid and $2,693 for the Mercedes-Benz S-Class.
Which has more cargo space?
The Mercedes-Benz S-Class, with 12 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
BMW 7 Series Plug-in Hybrid vs Mercedes-Benz S-Class in other years
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