http://www.ehow.com/guide_7-http://www.ehow.com/guide_7-cars.html.htmlwww.ehow.comhttp://www.ehow.com/how_4757475_what-do-hybrid-cars-run.htmlHybrid cars run on a gas engine combined with a hybrid system that is powered by a nickel metal hydride battery. Find out how hybrid cars work similarly to power generators with information from a hybrid car salesman in this free video on hybrid cars. Published on 2/4/2009