sentences:  Although initially well-received, sales of the vehicle dropped off at the end of the 1980s.As school bus production became increasingly competitive in the early 1990s, Gillig ended production of the Phantom School Bus after 1993, concluding 71 years of school bus production.Using much of the mass-transit Gillig Phantom as a donor platform, the design was the first fully redesigned Gillig school bus in 46 years.