Infiniti QX55 Vehicle Class & EPA Size Category
The EPA classifies the 2025 Infiniti QX55 as a Small Sport Utility Vehicle 4WD, a rating based on body style and interior volume.
Latest model year (2025):
The Infiniti QX55 is classified by the EPA as a Small Sport Utility Vehicle 4WD.
Infiniti QX55 Vehicle Class — All Years
| Year | Trim | Vehicle Class | Drive | Fuel Type | MPG Comb. |
|---|---|---|---|---|---|
| 2025 | Auto (AV-S8), 4 cyl, 2.0 L | Small Sport Utility Vehicle 4WD | All-Wheel Drive | Premium Gasoline | 25 |
| 2024 | Auto (AV-S8), 4 cyl, 2.0 L | Small Sport Utility Vehicle 4WD | All-Wheel Drive | Premium Gasoline | 25 |
| 2023 | Auto (AV-S8), 4 cyl, 2.0 L | Small Sport Utility Vehicle 4WD | All-Wheel Drive | Premium Gasoline | 25 |
| 2022 | Auto (AV-S8), 4 cyl, 2.0 L | Small Sport Utility Vehicle 4WD | All-Wheel Drive | Premium Gasoline | 25 |
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.
Infiniti QX55 Vehicle Class FAQ
What class of vehicle is the Infiniti QX55?
The EPA classifies the Infiniti QX55 as a Small Sport Utility Vehicle 4WD. This classification is based on interior volume and body style and affects how its fuel economy is compared with other vehicles.
Is the Infiniti QX55 considered a small or large vehicle?
Based on its EPA class (Small Sport Utility Vehicle 4WD), the Infiniti QX55 is grouped with vehicles of similar size and interior volume. The class can change between model years when the body is redesigned.