|Found some Info on some Buick Model changes..
The 2002 Rendezvous sport wagon, to be launched in early 2001, will finally fulfill Buick’s need for a minivan and a sport-utility.
The LeSabre — redesigned for the 2000 model year — will receive a freshening for the 2003 model year and a redesign for the 2005 model year
Park Ave - Redesign.
BUICK REGAL AND CENTURY
Regal and Century will move to the new mid-luxury platform for the 2004 model year. The two sedans, currently based on the W platform, were last redesigned for the 1997 model year.
For the 2001 model year, Buick will introduce another special edition Regal from clothing designer Joseph Abboud. He helped design the 2001 Buick Regal Olympic Edition, introduced in April.
Buick Signia: Wagonlike vehicle co-developed with the Pontiac Banner.