General Motors' acting CEO Ed Whitacre has revealed Spyker as the sole remaining bidder for Saab.

In Whitacre's first official press briefing since taking over from the ousted Fritz Henderson, he claimed that a deal with the Dutch sports car manufacturer could be completed by the end of the year. However, he reiterated that If no deal can be agreed with a new investor, Saab would be shut down.

The Swedish company sold the rights to its old 9-5 and current 9-3 to Chinese manufacturer BAIC on Monday and the money from the deal is believed to be enough to keep Saab afloat for the next three months. This means any deal with Spyker would need to be sorted by March or Saab would face closure.