Dutch automaker Spyker Cars submitted a new offer Sunday to buy the Swedish brand Saab from General Motors.

On Friday, GM said it was winding down Saab because of issues with Spyker that could not be resolved.

Spyker says it has made every effort to address those issues and is hoping to have a deal with GM by Dec 31.

The new offer removes a requirement that a loan from the European Investment Bank to Saab be approved before the end of the year, Spyker CEO Victor Muller said. He also said the offer has the full backing of Saab's management.

Spyker said the offer expires Monday, giving GM little time to make a decision.

Later Sunday, GM said it had received "inquiries from several parties" and wouldn't be commenting further until it evaluates each inquiry.

Saab employs about 3,400 people worldwide, most of them at its main plant in Trollhattan, Sweden.

With files from The Associated Press