BMW i7 vs Mercedes-Benz EQS: Specs Compared
Also searched as Mercedes-Benz EQS vs BMW i7 specs — both orientations show this same side-by-side comparison.
The Mercedes-Benz EQS is the more efficient of the two: it reaches 103 mpg combined versus 92 mpg for the BMW i7, a 11 mpg advantage and costs about $100 less per year to fuel.
Across 4 measured categories, the Mercedes-Benz EQS leads in 4. Figures are EPA test data, not manufacturer claims.
2022–2027
Mercedes-Benz EQS
Large Cars · 32 configurations
Head-to-head specifications
| Metric | BMW i7 | Mercedes-Benz EQS |
|---|---|---|
| Best combined MPG | 92 mpg | 103 mpg ✓ |
| Best city MPG | 91 mpg | 101 mpg ✓ |
| Best highway MPG | 95 mpg | 105 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $800 | $700 ✓ |
| Lowest CO2 output | Not available | Not available |
| Engines offered | Not available | Not available |
| Transmissions | Automatic (A1) | Automatic (A1) |
| Drivetrains | All-Wheel Drive, Rear-Wheel Drive, 4-Wheel Drive | All-Wheel Drive, Rear-Wheel Drive |
| Fuel types | Electricity | Electricity |
| EPA class | Large Cars | Large Cars |
| Years covered | 2023–2027 | 2022–2027 |
| Configurations on record | 34 | 32 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
BMW i7 vs Mercedes-Benz EQS dimensions and size
The BMW i7 is 5.1 inches longer than the Mercedes-Benz EQS on a wheelbase 0.4 inches longer, and 487.2 lbs heavier. At over 200 inches, the larger of the two is past the comfortable limit of a standard 192-inch single garage bay once you allow walking room.
| Dimension | BMW i7 (2026) | Mercedes-Benz EQS (2026) | Difference |
|---|---|---|---|
| Length | 212.2 in | 207.1 in | 5.1 in |
| Width (excl. mirrors) | 76.8 in | 76 in | 0.8 in |
| Height | 60.6 in | 59.1 in | 1.6 in |
| Wheelbase | 126.8 in | 126.4 in | 0.4 in |
| Curb weight | 6,343 lbs | 5,855 lbs | 487 lbs |
Width excludes mirrors; add 8–12 inches for mirrors out. Figures are for the newest model year on record for each vehicle. See both drawn to scale.
BMW i7 vs Mercedes-Benz EQS: what the numbers mean
Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Mercedes-Benz EQS burns about $700 of fuel annually against $800 for the BMW i7. That $100 yearly gap compounds to roughly $500 over five years and $800 over eight — often more than the price difference between two trims of the same vehicle, and the single largest running-cost line item separating these two.
City and highway economy: the Mercedes-Benz EQS leads in both cycles — 101 mpg city and 105 mpg highway against 91 and 95 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.
Drivetrain and class: the BMW i7 is offered with All-Wheel Drive, Rear-Wheel Drive, 4-Wheel Drive, the Mercedes-Benz EQS with All-Wheel Drive, Rear-Wheel Drive. All-wheel drive typically costs one to two mpg combined against the same vehicle in front- or rear-wheel drive, which is worth remembering when the gap between these two is small. The EPA classes them as Large Cars and Large Cars respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.
i7 vs EQS: common questions
Which is better on gas, the BMW i7 or the Mercedes-Benz EQS?
The Mercedes-Benz EQS is the more efficient of the two: it reaches 103 mpg combined versus 92 mpg for the BMW i7, a 11 mpg advantage and costs about $100 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Mercedes-Benz EQS runs about $700 a year in fuel at its most efficient configuration, versus about $800 for the BMW i7 — a difference of roughly $100 per year.
What engines do the i7 and EQS offer?
BMW i7: no engine data on record. Mercedes-Benz EQS: no engine data on record.
Are they in the same vehicle class?
Yes — the EPA classifies both the BMW i7 and the Mercedes-Benz EQS as Large Cars, so they compete directly.
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Comparison id: bmw-i7-vs-mercedes-benz-eqs