The Toyota Sai is a mid-size hybrid sedan introduced by Toyota as a luxury counterpart to the Prius, primarily for the Japanese market. Launched in 2009, it combines a 2.4-liter gasoline engine with an electric motor, offering efficient performance and premium features. Over its generations, the Toyota Sai has evolved in design, comfort, and technology, maintaining a focus on eco-friendly driving. The vehicle is known for its spacious interior and balanced dimensions, making it a competitive choice in the hybrid sedan segment.