Acinakc, dxG6 is correct. Either you have made a typo or someone has mislead you. I hope that your digits inadvertently hit the wrong keyboard. Good eye dxG6!
There is another post on this forum somewhere that provides insight on biuld #ís. That is, for me, the most interesting part. Because my 2006 GTP was ordered in arrival blue metalic code 815, i am thinking that i may have a pretty rare car. The build numbers appear to be somewhere in the 3800 area. When i purchased it the original onwner indicated that he only knew of one other gtp it that same color.
The web page that i just mentioned does not include that color at all. If the only other gtp in that colored is still alive and well, i may have a 1 of 2 and if the other car has perished ( i hope not ). You know where this going.