Up front, things looked a little different, at first, but I couldn’t find much that didn’t line up. It looks like a little bit of fine-tuning took place. This is the same model from early 2004.

2007 GMC Sierra clay 2004-02-20 front left

Below, in the gray color, is a production 2007 Sierra.

2007 GMC Sierra Z71 Extended Cab front left
Below is a zoomed in picture of the reddish model’s front end. I’m not sure what it is but something looks different.

2007 GMC Sierra clay 2004-02-20 front close-up

The model shown in these last two pictures was labeled a Heavy Duty and were dated June 18 of 2004.

2007 GMC Sierra HD clay 2004-06-18 front left

The headlights on this model appear to have involved a lot of intricate sculpting.

2007 GMC Sierra HD clay 2004-06-18 rear left

There are much larger versions of these pictures in the gallery, plus some extras of the production models.

Copyrighted photography courtesy General Motors (©General Motors 2012).


Continue below to the photo gallery.

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