What is a Hybrid Vehicle?
Hybrid vehicles utilize two or more sources of power in order to improve fuel ecomony or emissions control. Different manufacturers use different systems, so don't assume that the word "hybrid" has any particular meaning. At this stage of the hybrid game, manufacturers are developing cars and trucks that run on gasoline and electric power. The electric batteries are regenerated by energy captured during breaking or by other means. Some truck models have electric plug ins that can be used to run power tools. In general, you might expect to save 10 - 15 percent on gasoline costs, below the cost of a similar gasoline-only powered vehicle.