2025 Hyundai Elantra Hybrid

Smartstream

1.6L Hybrid I4

A frugal Atkinson-cycle four blended with a compact electric motor for crisp, low-effort efficiency, tuned to sip fuel rather than thrill.

Hyundai's Smartstream G1.6 GDI hybrid powertrain, built on the brand's all-aluminum modern engine family introduced in 2018.

• Instead of a droning CVT, the Elantra Hybrid uses a six-speed dual-clutch transmission for crisper, more natural shifts.
• It runs the Atkinson combustion cycle, trading outright power for thermal efficiency, and returns over 50 mpg combined.
• The electric motor lives between the engine and the dual-clutch gearbox rather than in a power-split device.