The New Honda Hybrid System features a 3-stage i-VTEC engine that regulates the valves to provide three stages of valve timing (low-rpm, high-rpm, and cylinder idle mode) in accordance with driving conditions, combining with a significantly improved IMA (Integrated Motor Assist) system. The system provides low-speed torque, on par with a 1.8-liter gasoline engine, while achieving ultra-high fuel economy of 31.0km/l.