Any vehicle with two or more sources of power can be classified as a Hybrid vehicle. These vehicles run on a rechargeable (Traction) battery and gasoline. Some neat facts about Hybrid Cars: 1) Hybrid engines are made smaller and to accommodate the 99% of time when not going uphill or accelerating quickly. The battery kicks in to provide the extra power when required in these situations. 2)When the car is stopped, hybrid gasoline engine can shut off and run on electricity from the battery and their electric motor. 3)Hybrids have more aerodynamic features and are lighter than conventional vehicles. The tires are more stiff and inflated higher to reduce drag. 4)Braking energy is recovered and it is used to charge the battery. There is not necessity for long power cables and you do not have to plug it in to charge .