Aren’t all hybrids the same? NO! The general definition of a hybrid is true – using two sources of power (in currently available hybrids that is a gasoline engine and an electric motor) to propel the vehicle down the road. The two types are full hybrids and mild hybrids (commonly used names for mild hybrids: power assist hybrids, integrated starter/generator hybrids, belt-alternator-starter hybrids, start/stop hybrids). Toyota’s recent news release markets the advantages of the full hybrid system which it has over 1000 patents to its name.
View this video from the United States Department of Energy on the differences between a full hybrid and a mild (start/stop) hybrid – Full Hybrid vs. Start/Stop Hybrid – FuelEconomy.gov

Toyota’s campaign is needed. There is a big difference in hybrid technologies. When researching hybrid vehicles, determine what hybrid technology is used and the fuel efficiency benefits of each. To learn more, go to Energy.gov.