After missing a self-imposed December 31 deadline to sell the Saab brand, General Motors has decided to delay the cut-off date due to continued negotiations with Spyker Cars, which may elevate interest in used Saab models in New Jersey.

Negotiations between GM and Spyker have been ongoing for months, with multiple offers having been rejected by Saab’s current owner. Reports surfaced in late December that GM had decided to shut down the Swedish automaker rather than sell it, but that news was found to be premature.

Spyker has already had two offers rejected by GM, but Reuters reports that they have made a third proposal that is set to expire on January 7.

“I am very hopeful, I have been from the start,” said Spyker CEO Victor Muller to the Swedish newspaper Svenska Dagbladet on Monday, quoted by AutoWeek.com. “We have done all we possibly can.”

Muller has said that Saab would maintain its headquarters if Spyker purchases the brand and that they would rebuild the Swedish company around the 9-3, 9-5 and 9-4X models, according to the news source. He also added that Saab could begin to sell Spyker automobiles if the deal goes through.

Used Saab models in New Jersey may begin to attract attention if ownership of the company changes hands.