Large cars · Electric · model year 2026
BMW i7 vs Mercedes-Benz EQS
For model year 2026, the Mercedes-Benz EQS gets 98 MPGe combined and the BMW i7 88: a 10 MPGe lead, or 11% on the lower figure.
Side by side
| Measure | BMW i7 | Mercedes-Benz EQS |
|---|---|---|
| Combined fuel economy (best version) | 88 MPGe | 98 MPGe |
| City | 85 MPG | 98 MPG |
| Highway | 93 MPG | 98 MPG |
| Annual fuel cost | $850 | $750 |
| Tailpipe CO2 | 0 g/mile | 0 g/mile |
| Lowest rated version | 75 MPGe | 79 MPGe |
| Rated versions | 8 | 6 |
| All-electric range | 314 mi | 390 mi |
| Rank in class (best combined rating) | 5th of 25 | 3rd of 25 |
| Class | Large cars | Large cars |
| Powertrain | Electric | Electric |
Better figure in bold; each model's most efficient version.
Fuel economy and cost
Under the file's assumptions the Mercedes-Benz EQS costs about $750 a year to fuel and the BMW i7 about $850: $100 a year apart on 15,000 miles.
Where each one ranks
Within their class the BMW i7 is 5th of 25 large cars, in the top quarter, ahead of 83% of the others. The Mercedes-Benz EQS is 3rd of 25 large cars, in the top quarter, ahead of 92% of the others.
The BMW i7 has 8 rated versions, from 75 to 88 MPGe. The Mercedes-Benz EQS has 6, from 79 to 98 MPGe. For the most efficient versions, the BMW i7 is rated 8 higher on the highway (93 against 85), while the Mercedes-Benz EQS is rated the same in the city and on the highway (98).
Their lineups meet at 79 MPGe: i7 M70 xDrive Sedan (21 inch Wheels): electric motor, Automatic (A1), AWD for the BMW i7 and EQS 400 4matic (SUV): electric motor, Automatic (A1), AWD for the Mercedes-Benz EQS.
Ratings by model year
Both models are in the data for 4 model years, 2023 to 2026. The BMW i7 has the higher best rating in 0 of them and the Mercedes-Benz EQS in 4. The widest gap, 14 MPGe, was in 2023, when the Mercedes-Benz EQS led.
| Model year | BMW i7 | Mercedes-Benz EQS | Gap |
|---|---|---|---|
| 2026 | 88 | 98 | -10 |
| 2025 | 88 | 98 | -10 |
| 2024 | 90 | 96 | -6 |
| 2023 | 89 | 103 | -14 |
| 2022 | not in data | 97 | n/a |