2001 c240, 2002 c240, 2003 c240

Anyone know the diff' between the years??
2001 c240
2002 c240
2003 c240

msn does:

2001
http://autos.msn.com/research/vip/overview.aspx?year=2001&make=Mercedes-Benz&model=C-Class&src=vip
2002
http://autos.msn.com/research/vip/Spec_Glance.aspx?year=2002&make=Mercedes-Benz&model=C-Class&trimid=-1&src=vip
2003
http://autos.msn.com/research/vip/Spec_Glance.aspx?year=2003&make=Mercedes-Benz&model=C-Class&trimid=-1&src=vip

btw, there is no difference in terms of engines, etc. might have been a mild redo of the interior in 2003, but i'm not 100% on that. ovbiously, interior and parts quality increases after the first production year.

thanks for the help