Mercedes-Benz EQB vs Rivian R1S: Specs Compared
Also searched as Rivian R1S vs Mercedes-Benz EQB specs — both orientations show this same side-by-side comparison.
The Mercedes-Benz EQB is the more efficient of the two: it reaches 107 mpg combined versus 85 mpg for the Rivian R1S, a 22 mpg advantage and costs about $200 less per year to fuel.
Across 4 measured categories, the Mercedes-Benz EQB leads in 4. Figures are EPA test data, not manufacturer claims.
2022–2025
Mercedes-Benz EQB
Small Sport Utility Vehicle 4WD · 8 configurations
2022–2027
Rivian R1S
Standard Sport Utility Vehicle 4WD · 94 configurations
Head-to-head specifications
| Metric | Mercedes-Benz EQB | Rivian R1S |
|---|---|---|
| Best combined MPG | 107 mpg ✓ | 85 mpg |
| Best city MPG | 114 mpg ✓ | 94 mpg |
| Best highway MPG | 100 mpg ✓ | 77 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $700 ✓ | $900 |
| Lowest CO2 output | Not available | Not available |
| Engines offered | Not available | Not available |
| Transmissions | Automatic (A1) | Automatic (A1) |
| Drivetrains | Front-Wheel Drive, All-Wheel Drive | 4-Wheel Drive, Part-time 4-Wheel Drive, All-Wheel Drive |
| Fuel types | Electricity | Electricity |
| EPA class | Small Sport Utility Vehicle 4WD | Standard Sport Utility Vehicle 4WD |
| Years covered | 2022–2025 | 2022–2027 |
| Configurations on record | 8 | 94 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Mercedes-Benz EQB vs Rivian R1S dimensions and size
The Rivian R1S is 16.5 inches longer than the Mercedes-Benz EQB on a wheelbase 9.8 inches longer, and 2,570.6 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 | Mercedes-Benz EQB (2026) | Rivian R1S (2026) | Difference |
|---|---|---|---|
| Length | 184.3 in | 200.8 in | 16.5 in |
| Width (excl. mirrors) | 72 in | 79.1 in | 7.1 in |
| Height | 65.7 in | 77.2 in | 11.4 in |
| Wheelbase | 111.4 in | 121.3 in | 9.8 in |
| Curb weight | 4,497 lbs | 7,068 lbs | 2,571 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.
Mercedes-Benz EQB vs Rivian R1S: what the numbers mean
Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Mercedes-Benz EQB burns about $700 of fuel annually against $900 for the Rivian R1S. That $200 yearly gap compounds to roughly $1,000 over five years and $1,600 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 EQB leads in both cycles — 114 mpg city and 100 mpg highway against 94 and 77 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.
Drivetrain and class: the Mercedes-Benz EQB is offered with Front-Wheel Drive, All-Wheel Drive, the Rivian R1S with 4-Wheel Drive, Part-time 4-Wheel Drive, All-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 Small Sport Utility Vehicle 4WD and Standard Sport Utility Vehicle 4WD respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.
EQB vs R1S: common questions
Which is better on gas, the Mercedes-Benz EQB or the Rivian R1S?
The Mercedes-Benz EQB is the more efficient of the two: it reaches 107 mpg combined versus 85 mpg for the Rivian R1S, a 22 mpg advantage and costs about $200 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Mercedes-Benz EQB runs about $700 a year in fuel at its most efficient configuration, versus about $900 for the Rivian R1S — a difference of roughly $200 per year.
What engines do the EQB and R1S offer?
Mercedes-Benz EQB: no engine data on record. Rivian R1S: no engine data on record.
Are they in the same vehicle class?
The EPA classifies the Mercedes-Benz EQB as Small Sport Utility Vehicle 4WD and the Rivian R1S as Standard Sport Utility Vehicle 4WD, so they aren't a like-for-like match on size.
More EQB comparisons
More R1S comparisons
Comparison id: mercedes-benz-eqb-vs-rivian-r1s