From what I know of the market, and being GM is a company I like to follow just for personal preference, this is what I can say.
Yes GM isn't doing that great, along with Ford. DC has the "domestic" market in the palm of its hands. Delphi going bankrupt dropped GM's stock by a good $5 per share through Friday and yesterday. To give you an idea, GM was around $45 per share at the beginning of this year. Now, last I looked, they're at $24.81 . That's a painfully substantial drop. At least Ford is still under $10...
Anyway, GM is inevitably going to start killing off it's branches. Pontiac and Buick will be the first to go, most likely along with Saturn. The star cars from each of the branches (the Grand Prix and such) will most likely move to Chevy, GMC, or Cadillac. If GM plays their cards right in the coming weeks, they can pull their asses out of this slump. It's all a matter, though, of if they're willing to let go of a good portion of their gas guzzling SUV's and trucks.
And just so you know, the reason DC is doing reasonably well is because half of their company is based in Europe. In fact most of the corporation as a whole is in Europe, thus why it isn't CD but DC
. Europe really isn't hurting as bad as America through this whole rise in oil prices and such. Sure they're paying much higher gas prices than us (easily twice the price in some places) but keep in mind. Most Eastern European's are very educated people who know how to manage their lives. They don't live day to day so to them buying a car isn't as much of a life and death decision as it is here. Also many of those countries use fuel sources other than petroleum.