Parallel hybrids are vehicles that use both an internal combustion engine and an electric motor to power the wheels. In this system, both power sources can work together or independently, allowing for improved fuel efficiency and reduced emissions. The electric motor can assist the engine during acceleration or operate alone at low speeds. These hybrids typically have a smaller battery compared to series hybrids, which rely solely on electric power. The design allows for a seamless transition between the engine and electric motor, providing a smooth driving experience. Parallel hybrids are commonly found in many modern vehicles, contributing to the shift towards more sustainable transportation options.