A hybrid car is a vehicle that uses on-board RESS, or rechargeable vitality storage system. The historical past of hybrid automobiles is closely intertwined with the history of Ferdinand Porsche who designed the Lohner-Porsche carriage, a series-hybrid vehicle that utilized an one-cylinder gasoline inside combustion engine. Historical past points to the clear difference of hybrid with all-electrical cars. Electrical cars use batteries charged by an exterior source. Hybrid automobiles additionally use hydrogen gas occasionally.