Sales of the Pontiac G8 have not taken off at the feverish pace General Motors would have hoped to see. Whether it was a trend away from gas-guzzling performance cars or the general automotive industry downturn that is taking its toll on the Australian-built sedan is anybody's guess, but the future of Holden exportation to North America is cloudy.

Since the Pontiac G8 was launched in the U.S. market for the 2008 model year, the re-badged Holden Commodore has only found a home with 13,000 buyers. More than 11,000 more unsold G8s remain in Pontiac's inventory, totaling a 283 day's supply -- the third worst of any GM nameplate, according to Automotive News.

Because of that backup -and the fact that Commodore sales have fallen 16 percent in Australia, according to The Australian - the G8's Adelaide plant will be idled for 25 days in the first quarter of 2009, on top of the plant's already planned four week closure for the holiday season.

GM's recent financial woes don't favor the G8's future, either. In a bid to secure at least $25 billion in low interest loans from the U.S. government, GM is mulling the idea of selling or simply killing its 82-year old Pontiac brand. That move would no doubt influence a buyer's decisions to put the G8 on their short list.

Although the G8's performance in the U.S. is disappointing, it's not exactly the biggest surprise. Pontiac sold the Holden-made GTO in the U.S. from 2004 to 2005, but the reborn Goat was forced back out of the market due to dismal sales.

If GM ultimately decides to pull the plug on the G8, it would likely be the last Holden-made GM product we would see in the States for the foreseeable future. That would be a shame, too, as the G8 has the rare combination of style, performance and value.