If you put a lift on the 2014 GMC it would look a lot closer to the "All Terrain" concept.
If by similar you mean there both lifted, but the concept shared the same body and the GMT-900's with a different front clip and storage box for a bed. Maybe I'm greedy but I would have like to see them keep the same cab exterior (please spare me the super strength so protection with proprietery super metals speech Ben). Although a return to cab rockers if a good idea. I have liked all the new GM trucks to come out except for the 03-04 Silverado's right from the get go but I just cant get behind the new Chevy's.
What Chevy thought they were doing with grilles.
What Chevy actually did.