Swedish Prime Minister Fredrik Reinfeldt has expressed his fears for the future of Saab, after it was left out of GM's sale of Vauxhall and Opel.
"I believe that anyone who has followed this closely realises that this is a very vulnerable and difficult position that Saab is in," said Reinfelt.
Saab and GM are still expected to announce their preferred bidder within the next month, although GM's anticipated filing for Chapter 11 bankruptcy protection could complicate that.
Three bidders are said to be in the running to buy the company, with one of them being the supercar maker Koenigsegg.
In the meantime, a Swedish court has granted Saab a further extension of the period during which it is protected from creditors, giving it more time to restructure.