First of all let me clear things up a bit:
The GMC Terradyne concept was intruduced at the North American International Auto Show in the year
2000.
So I'm including this link for Tikigod to make sure there's no misunderstanding of who was first!
http://www.pickuptruck.com/html/naias/terradyne.html
Obviously, the guys I know have been diehard GMC and Chevy fans all their lives and a little biased. Until they actually rode in my Titan, they wouldn't believe the power and sophistication.
I guess the question was for the few of us who actually researched the Titan from the inception of alpha-T to the final form and production model before buying one(who also follow the NAIAS).
Sorry I wasn't quite clear in the first post.
D-Titan