2018 Kia Optima Specifications Overview
The 2018 Kia Optima is certified across 7 configurations with 1.6L 4-Cylinder Engine, 2.4L 4-Cylinder Engine, 2L 4-Cylinder Engine, 2L Gas-Electric Hybrid Engine, 2L Plug-in Hybrid Powertrain powertrain options. Available drivetrain layouts include Front-Wheel Drive paired with Automatic (AM7) or Automatic (S6) or Automatic (AM6). EPA classified under the Large Cars / Midsize Cars size category.
Certified Powertrain & Transmission Configurations (7)
Official laboratory certification specifications for each factory engine, transmission, and drivetrain permutation
| Configuration / Model | Engine & Displacement | Cylinders | Induction / Tech | Transmission | Drivetrain | Fuel System |
|---|---|---|---|---|---|---|
| Optima Large Cars | 1.6L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (AM7) | Front-Wheel Drive | Regular |
| Optima FE Large Cars | 2.4L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S6) | Front-Wheel Drive | Regular |
| Optima Large Cars | 2.4L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S6) | Front-Wheel Drive | Regular |
| Optima S Large Cars | 2.4L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S6) | Front-Wheel Drive | Regular |
| Optima Large Cars | 2L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S6) | Front-Wheel Drive | Regular |
| Optima Hybrid Midsize Cars | 2L Gas-Electric Hybrid Engine | 4 | Hybrid Electric Assist | Automatic (AM6) | Front-Wheel Drive | Regular |
| Optima Plug-in Hybrid Midsize Cars | 2L Plug-in Hybrid Powertrain | 4 | Hybrid Electric Motor + Engine | Automatic (AM6) | Front-Wheel Drive | Regular Gas and Electricity |
Regulatory Classification & Safety Architecture
Federal classification standards and standard active driver assistance system capabilities
EPA Regulatory Size Class
- Large Cars
- Midsize Cars
NHTSA NCAP Body Formats
- 2018 Kia Optima 4 DR FWD
- 2018 Kia Optima Hybrid 4 DR FWD
- 2018 Kia Optima Plug-in Hybrid 4 DR FWD
Active Safety Technology
Evaluated under federal safety compliance standards.
Powertrain, transmission, drivetrain, and regulatory classification specifications on this page are derived directly from the United States Environmental Protection Agency (EPA) and National Highway Traffic Safety Administration (NHTSA) official laboratory certification registries.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.