It's funny how models get started. I got a two 2004 GTO kits on eBay for a buck each. After I get them I have to decide what to do with them. I've been looking at the Holden Commodores for other builds and decided to change the GTO into one of these. It turns out that Pontiac is going to release the G8 in 2010 with a Utility version. So, I'm calling this the 2004 version a concept named the Deleon. I pick these names out of a phone books and atlases. It also turned out that someone has changed a Commodore ute into a Pontiac with changed badging and grille. So, someone beat me to it !!
These are a few of the photos I used to study the Commodore. I find these photos by Googling "2004 Commodore ute" and eBay.au
The two versions of the AMT 2004 GTO. I used the JL kit.
I look up all the dimensions I can find on the cars.
2004 Commodore VZ ute SS (V8) vs GTO dimensions

                  Commodore/ute          GTO             Differnence           1:25
Length:       5049mm                   4821mm       +228                    9mm Longer
Width:        1845mm                   1841mm        +   4                       ---
Height:        1484mm                   1394mm        +90                     3.6mm Higher Suspension/tires
Wheelbase:   2939mm                   2789mm      +150                     6mm Longer