Honda Prologue vs Kia EV9: Specs Compared
Also searched as Kia EV9 vs Honda Prologue specs — both orientations show this same side-by-side comparison.
The Honda Prologue is the more efficient of the two: it reaches 104 mpg combined versus 89 mpg for the Kia EV9, a 15 mpg advantage and costs about $100 less per year to fuel.
Across 4 measured categories, the Honda Prologue leads in 4. Figures are EPA test data, not manufacturer claims.
2024–2026
Honda Prologue
Standard Sport Utility Vehicle 4WD · 9 configurations
2024–2026
Kia EV9
Standard Sport Utility Vehicle 4WD · 13 configurations
Head-to-head specifications
| Metric | Honda Prologue | Kia EV9 |
|---|---|---|
| Best combined MPG | 104 mpg ✓ | 89 mpg |
| Best city MPG | 113 mpg ✓ | 101 mpg |
| Best highway MPG | 94 mpg ✓ | 78 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $750 ✓ | $850 |
| Lowest CO2 output | Not available | Not available |
| Engines offered | Not available | Not available |
| Transmissions | Automatic (A1) | Automatic (A1) |
| Drivetrains | All-Wheel Drive, Front-Wheel Drive | Rear-Wheel Drive, All-Wheel Drive |
| Fuel types | Electricity | Electricity |
| EPA class | Standard Sport Utility Vehicle 4WD | Standard Sport Utility Vehicle 4WD |
| Years covered | 2024–2026 | 2024–2026 |
| Configurations on record | 9 | 13 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Honda Prologue vs Kia EV9 dimensions and size
The Kia EV9 is 5.1 inches longer than the Honda Prologue on a wheelbase 0.4 inches longer, and 443.1 lbs heavier. Both clear the roughly 200 inches of usable length in a standard single garage bay.
| Dimension | Honda Prologue (2026) | Kia EV9 (2026) | Difference |
|---|---|---|---|
| Length | 192.1 in | 197.2 in | 5.1 in |
| Width (excl. mirrors) | 78.3 in | 78 in | 0.4 in |
| Height | 64.6 in | 68.9 in | 4.3 in |
| Wheelbase | 121.7 in | 122 in | 0.4 in |
| Curb weight | 5,207 lbs | 5,650 lbs | 443 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.
Honda Prologue vs Kia EV9: what the numbers mean
Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Honda Prologue burns about $750 of fuel annually against $850 for the Kia EV9. 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 Honda Prologue leads in both cycles — 113 mpg city and 94 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 Honda Prologue is offered with All-Wheel Drive, Front-Wheel Drive, the Kia EV9 with Rear-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 Standard Sport Utility Vehicle 4WD respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.
Prologue vs EV9: common questions
Which is better on gas, the Honda Prologue or the Kia EV9?
The Honda Prologue is the more efficient of the two: it reaches 104 mpg combined versus 89 mpg for the Kia EV9, a 15 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 Honda Prologue runs about $750 a year in fuel at its most efficient configuration, versus about $850 for the Kia EV9 — a difference of roughly $100 per year.
What engines do the Prologue and EV9 offer?
Honda Prologue: no engine data on record. Kia EV9: no engine data on record.
Are they in the same vehicle class?
Yes — the EPA classifies both the Honda Prologue and the Kia EV9 as Standard Sport Utility Vehicle 4WD, so they compete directly.
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Comparison id: honda-prologue-vs-kia-ev9