It is actually one of the differences between the 2008 and 2009 models. The 2009 models come with a revised center dash that is darker then the one we have in the 2008.
http://www.lexusf.com/forums/showthread.php?t=649&highlight=Upclose
http://www.lexusf.com/forums/showthread.php?t=649&highlight=Upclose