Cars that run on conventional gasoline fuel but produce significantly lower carbon emissions when used. These gas-powered cars use a certain type of engine and run on low-sulfur gasoline. The California Air Resources Board grants Partial Zero Emission Vehicle (PZEV) credits to automobiles that have met the state’s Super Ultra Low Emission Vehicle (SULEV) tailpipe standard, which is 90% cleaner than the average automobile. Currently, PZEVs are costlier than the average car because of the engine used. Manufacturers such as BMW, Chrysler, Dodge, Ford, Honda, Mazda, Mitsubishi, Nissan, Subaru, Toyota, Volkswagen and Volvo all have PZEV models.