Kia EV9 vs Mercedes-Benz EQB: Specs Compared
Also searched as Mercedes-Benz EQB vs Kia EV9 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 89 mpg for the Kia EV9, a 18 mpg advantage and costs about $150 less per year to fuel.
Across 4 measured categories, the Mercedes-Benz EQB leads in 4. Figures are EPA test data, not manufacturer claims.
2024–2026
Kia EV9
Standard Sport Utility Vehicle 4WD · 13 configurations
2022–2025
Mercedes-Benz EQB
Small Sport Utility Vehicle 4WD · 8 configurations
Head-to-head specifications
| Metric | Kia EV9 | Mercedes-Benz EQB |
|---|---|---|
| Best combined MPG | 89 mpg | 107 mpg ✓ |
| Best city MPG | 101 mpg | 114 mpg ✓ |
| Best highway MPG | 78 mpg | 100 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $850 | $700 ✓ |
| Lowest CO2 output | Not available | Not available |
| Engines offered | Not available | Not available |
| Transmissions | Automatic (A1) | Automatic (A1) |
| Drivetrains | Rear-Wheel Drive, All-Wheel Drive | Front-Wheel Drive, All-Wheel Drive |
| Fuel types | Electricity | Electricity |
| EPA class | Standard Sport Utility Vehicle 4WD | Small Sport Utility Vehicle 4WD |
| Years covered | 2024–2026 | 2022–2025 |
| Configurations on record | 13 | 8 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Kia EV9 vs Mercedes-Benz EQB dimensions and size
The Kia EV9 is 13 inches longer than the Mercedes-Benz EQB on a wheelbase 10.6 inches longer, and 1,153 lbs heavier. Both clear the roughly 200 inches of usable length in a standard single garage bay.
| Dimension | Kia EV9 (2026) | Mercedes-Benz EQB (2026) | Difference |
|---|---|---|---|
| Length | 197.2 in | 184.3 in | 13 in |
| Width (excl. mirrors) | 78 in | 72 in | 5.9 in |
| Height | 68.9 in | 65.7 in | 3.1 in |
| Wheelbase | 122 in | 111.4 in | 10.6 in |
| Curb weight | 5,650 lbs | 4,497 lbs | 1,153 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.
Kia EV9 vs Mercedes-Benz EQB: 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 $850 for the Kia EV9. That $150 yearly gap compounds to roughly $750 over five years and $1,200 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 101 and 78 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.
Drivetrain and class: the Kia EV9 is offered with Rear-Wheel Drive, All-Wheel Drive, the Mercedes-Benz EQB with Front-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 Standard Sport Utility Vehicle 4WD and Small Sport Utility Vehicle 4WD respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.
EV9 vs EQB: common questions
Which is better on gas, the Kia EV9 or the Mercedes-Benz EQB?
The Mercedes-Benz EQB is the more efficient of the two: it reaches 107 mpg combined versus 89 mpg for the Kia EV9, a 18 mpg advantage and costs about $150 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 $850 for the Kia EV9 — a difference of roughly $150 per year.
What engines do the EV9 and EQB offer?
Kia EV9: no engine data on record. Mercedes-Benz EQB: no engine data on record.
Are they in the same vehicle class?
The EPA classifies the Kia EV9 as Standard Sport Utility Vehicle 4WD and the Mercedes-Benz EQB as Small Sport Utility Vehicle 4WD, so they aren't a like-for-like match on size.
More EV9 comparisons
More EQB comparisons
Comparison id: kia-ev9-vs-mercedes-benz-eqb