Pontiac has won the battle over which GM brand will sell a version of the Australian-built Holden Ute in the U.S., but it looks as though GMC also could be in line for a new four-door take on the theme. The flexible, rear-drive Zeta platform, upon which the Pontiac G8 and Ute (among others) are based, also underpins the GMC Denali XT Concept set make its world debut at the 2008 Chicago auto show.