Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Super Ultra Low Emission Vehicle (SULEV) is a U.S. classification for conventionally powered or gasoline-electric hybrid vehicle designed to produce minimal air pollution at their point of use, typically 90% less than that of an equivalent ordinary full gasoline vehicle.A conventionally powered example is the Ford Focus SULEV variant. In 2005, General Motors'' 3800 Series III V6 engines became the industry''s first gasoline V6s to carry the SULEV rating and can be found in the Pontiac Grand Prix (optionally supercharged), Buick LaCrosse, and the Buick Lucerne.