There are pundits who are harping on about GM's decline, some as bold as to declare a GM "death watch". And, they may be right, GM may be doomed--but it won't happen quickly, and it won't happen the way people expect. GM could very well come out of a bankruptcy swinging for the fences, or merge with another company.
There are, however, a few automakers who are worthy of being on a death-watch. The best example I have read of lately is Mitsubishi, who just came out with the new Eclipse. The car looks like the next generation of the Ford Cougar, weighs 3500lbs, is front-wheel-drive, and will cost $24,000 for a V6 manual version. That's Mustang V8 territory. The readers of Autoweek have just about voted the Eclipse off of the island. (HT: Autoblog)
I would say that Mitsubishi is in real danger of leaving the U.S. market, if the Eclipse flops the way it sounds like it will. The Eclipse may be Mitusbishi's sunset.
Other, non-GM nameplates that are at risk: Maybach, Smart*, VW, Jaguar, Suzuki.
*Smart may die before even making it to the U.S. market.