BB2/ RB20 HB30 10/86 - 1/90 HZB30 1/90 - 1/93 5/1982-1/1993
COASTER BUS | BB40 1/93 - 7/99 | HZB50 1/93 - 11/02 | BB50 11/02 - 8/06 | XZB50 8/06 - 1/1993-