The 2025 Lexus IS is certified across 5 configurations with 2L 4-Cylinder Engine, 3.5L 6-Cylinder Engine, 5L 8-Cylinder Engine powertrain options. Available drivetrain layouts include Rear-Wheel Drive, All-Wheel Drive paired with Automatic (S8) or Automatic (S6). EPA classified under the Compact 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 |
|---|---|---|---|---|---|---|
| IS 300 Compact Cars | 2L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S8) | Rear-Wheel Drive | Premium |
| IS 350 Compact Cars | 3.5L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S8) | Rear-Wheel Drive | Premium |
| IS 300 AWD Compact Cars | 3.5L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S6) | All-Wheel Drive | Premium |
| IS 350 AWD Compact Cars | 3.5L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S6) | All-Wheel Drive | Premium |
| IS 500 Compact Cars | 5L 8-Cylinder Engine | 8 | Naturally Aspirated | Automatic (S8) | Rear-Wheel Drive | Premium |
Federal classification standards and standard active driver assistance system capabilities
Compact Cars
2025 Lexus IS 300 4 DR AWD, 2025 Lexus IS 350 4 DR AWD, 2025 Lexus IS 300 4 DR RWD, 2025 Lexus IS 350 4 DR RWD, 2025 Lexus IS 500 4 DR RWD
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 2025 Lexus IS
The 2025 Lexus IS is certified with 2L and 3.5L and 5L 4-Cylinder / 6-Cylinder / 8-Cylinder engine options across factory configurations.
Certified specifications reflect official EPA emissions and fuel economy filings under 40 CFR Part 600.
Yes. The 2025 Lexus IS is available with Rear-Wheel Drive and All-Wheel Drive configurations depending on trim package.
Drivetrain layout affects vehicle curb weight, traction capabilities, and EPA-certified fuel economy ratings.
Factory certification records list Automatic (S8) or Automatic (S6) transmission architectures for the 2025 Lexus IS.
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.