Spyker's CEO says he expects a decision from GM on whether it will sell it Saab "very soon".
Spyker chief executive Victor Muller texted the Reuters news agency, telling it that talks were ongoing and adding the "outcome will be clear very soon."
However, there has been no official indication of a deadline for a deal.
Investment firm Genii Capital, which has the backing of F1 supremo Genii Capital, has also said this week that it remains in the running to buy Saab.
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