as far as gmbuypower sees it there is still only the LS and the GS but both can be converted to the LSE or the GSE and the only difference is the monsoon and the moon roof as far as i know they have not changed anything in the 2001-2002 besides the josheph E edition and the taking away of the performace shift feature. but all in all very good cars i just traded my 99 GS for a toy puller.