Pontiac Firebird 1967-2002 - what is this car??

I found this car while searching online for trans am things. and i can't find any details on it. (except what's written on the hood). anyone have any idea what set up this car has?

Gm performance parts 2003 trans am concept! Aka heritage edition, gm also made a 2003 heritage camaro

It has a 427, and it sounds wicked!
http://www.2002firehawk-c26.net/HeritageFBody.html
http://www.highperformancepontiac.com/features/hppp_0910_the_trans_am_421_sd/viewall.html

What do you think of it?