sentences:  A liquefied natural gas fueled version was produced beginning in 1992; it was later discontinued.A diesel-electric hybrid powered version was sold from 1996 to 2006; MTA in New York purchased a Gillig Phantom hybrid demo bus as well as diesels for MTA Long Island bus.From 2001 to 2003, King County Metro purchased 100 Gillig Phantoms to convert to trolleybuses.