The 2018 Hyundai Sonata is certified across 7 configurations with 2L Gas-Electric Hybrid Engine, 2L Plug-in Hybrid Powertrain, 1.6L 4-Cylinder Engine, 2.4L 4-Cylinder Engine, 2L 4-Cylinder Engine powertrain options. Available drivetrain layouts include Front-Wheel Drive paired with Automatic (AM6) or Automatic (AM7) or Automatic (S6) or Automatic (S8). EPA classified under the Midsize Cars / Large Cars size category.
Official laboratory certification specifications for each factory engine, transmission, and drivetrain permutation
| Configuration / Model | Engine & Displacement | Cylinders | Induction / Tech | Transmission | Drivetrain | Fuel System |
|---|---|---|---|---|---|---|
| Sonata Hybrid SE Midsize Cars | 2L Gas-Electric Hybrid Engine | 4 | Hybrid Electric Assist | Automatic (AM6) | Front-Wheel Drive | Regular |
| Sonata Hybrid Midsize Cars | 2L Gas-Electric Hybrid Engine | 4 | Hybrid Electric Assist | Automatic (AM6) | Front-Wheel Drive | Regular |
| Sonata Plug-in Hybrid Midsize Cars | 2L Plug-in Hybrid Powertrain | 4 | Hybrid Electric Motor + Engine | Automatic (AM6) | Front-Wheel Drive | Regular Gas and Electricity |
| Sonata Large Cars | 1.6L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (AM7) | Front-Wheel Drive | Regular |
| Sonata SE Large Cars | 2.4L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S6) | Front-Wheel Drive | Regular |
| Sonata Large Cars | 2.4L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S6) | Front-Wheel Drive | Regular |
| Sonata Large Cars | 2L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S8) | Front-Wheel Drive | Regular |
Federal classification standards and standard active driver assistance system capabilities
Midsize Cars, Large Cars
2018 Hyundai Sonata 4 DR FWD, 2018 Hyundai Sonata Hybrid 4 DR FWD, 2018 Hyundai Sonata Plug-in Hybrid 4 DR FWD
Evaluated under federal safety compliance standards.
Cross-reference fuel economy, safety ratings, owner defect complaints, and recall notices
Vehicle summary, key performance indicators, and primary reliability metrics.
EPA certified city/highway fuel economy, electric battery range, and annual fuel costs.
NHTSA 5-Star NCAP crash tests, rollover risk, and active driver assistance.
NHTSA consumer defect complaint filings by affected vehicle component.
Official safety recall notices, defect descriptions, and free dealer remedies.
Direct, deterministic answers synthesized from verified United States government databases for the 2018 Hyundai Sonata
The 2018 Hyundai Sonata is certified with 2L and 1.6L and 2.4L 4-Cylinder engine options across factory configurations.
Certified specifications reflect official EPA emissions and fuel economy filings under 40 CFR Part 600.
Official EPA certification records list the 2018 Hyundai Sonata with Front-Wheel Drive layout(s).
Drivetrain layout affects vehicle curb weight, traction capabilities, and EPA-certified fuel economy ratings.
Factory certification records list Automatic (AM6) or Automatic (AM7) or Automatic (S6) or Automatic (S8) transmission architectures for the 2018 Hyundai Sonata.
Transmission specifications represent factory certified equipment tested for emissions and fuel economy compliance.
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 under 40 CFR Part 600.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.