Kia K4 Vehicle Class & EPA Size Category
The EPA classifies the 2026 Kia K4 as a Midsize Cars / Large Cars, a rating based on body style and interior volume.
Latest model year (2026):
The Kia K4 is classified by the EPA as a Midsize Cars / Large Cars.
Kia K4 Vehicle Class — All Years
| Year | Trim | Vehicle Class | Drive | Fuel Type | MPG Comb. |
|---|---|---|---|---|---|
| 2026 | Auto (AV-S1), 4 cyl, 2.0 L | Midsize Cars | Front-Wheel Drive | Regular Gasoline | 33 |
| 2026 | Auto (AV-S1), 4 cyl, 2.0 L | Midsize Cars | Front-Wheel Drive | Regular Gasoline | 33 |
| 2026 | Auto (AV-S1), 4 cyl, 2.0 L | Large Cars | Front-Wheel Drive | Regular Gasoline | 30 |
| 2026 | Auto (S8), 4 cyl, 1.6 L | Large Cars | Front-Wheel Drive | Regular Gasoline | 28 |
| 2026 | Auto (S8), 4 cyl, 1.6 L | Midsize Cars | Front-Wheel Drive | Regular Gasoline | 28 |
| 2025 | Auto (AV-S1), 4 cyl, 2.0 L | Midsize Cars | Front-Wheel Drive | Regular Gasoline | 33 |
| 2025 | Auto (AV-S1), 4 cyl, 2.0 L | Midsize Cars | Front-Wheel Drive | Regular Gasoline | 34 |
| 2025 | Auto (S8), 4 cyl, 1.6 L | Midsize Cars | Front-Wheel Drive | Regular Gasoline | 29 |
Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.
Kia K4 Vehicle Class FAQ
What class of vehicle is the Kia K4?
The EPA classifies the Kia K4 as a Midsize Cars / Large Cars. This classification is based on interior volume and body style and affects how its fuel economy is compared with other vehicles.
Is the Kia K4 considered a small or large vehicle?
Based on its EPA class (Midsize Cars, Large Cars), the Kia K4 is grouped with vehicles of similar size and interior volume. The class can change between model years when the body is redesigned.