2020 head-to-head · Large Car
2020 BMW 7 Series 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.
The 2020 BMW 7 Series is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,469 a year to fuel (24 MPG), versus $2,693 for the 2020 Mercedes-Benz S-Class (22 MPG). That's roughly $224 a year, or about $1,122 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
- Mercedes-Benz S-Class
Side by side
| BMW 7 Series | Mercedes-Benz S-Class | |
|---|---|---|
| $2,469 | Your annual fuel cost | $2,693 |
| 24 MPG | Combined efficiency | 22 MPG |
| 22 MPG | City | 19 MPG |
| 29 MPG | Highway | 28 MPG |
| 114 cu ft | Passenger volume | 112 cu ft |
| 14 cu ft | Cargo volume | 12 cu ft |
| 361 g/mi | Tailpipe CO₂ (g/mi) | 403 g/mi |
| 5/10 | EPA fuel economy score | 4/10 |
| 5/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| 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 | 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 vs Mercedes-Benz S-Class across model years
- BMW 7 Series
- 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 BMW 7 Series has more cargo space (14 vs. 12 cu ft).
Among 32 2020 large cars, the BMW 7 Series ranks 23rd and the Mercedes-Benz S-Class 24th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2020 BMW 7 Series or the 2020 Mercedes-Benz S-Class?
Measured by cost to drive, the BMW 7 Series. The BMW 7 Series is rated 24 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 vs. the Mercedes-Benz S-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,469 for the BMW 7 Series and $2,693 for the Mercedes-Benz S-Class.
Which has more cargo space?
The BMW 7 Series, with 14 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
BMW 7 Series vs Mercedes-Benz S-Class in other years
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