There appears to be a lengthening queue of people who are claiming General Motors has got plenty to hide when it comes to the bankruptcy of Saab, and the resulting $3 billion lawsuit by Spyker against GM.

In the last couple of days the former head of the component suppliers association, CLEPA, told industry website www.just-auto.com, “I see some papers and emails that are very interesting regarding the action of GM. It is not going away. I suspect we have another scandal coming up.” Now the head of FKG, another suppliers association, has told the same website, “I am sure there has been a lot of dirty or half dirty business behind this last year, what really happened there.”

Spyker, who owned Saab until it went bust last year, is suing General Motors, saying that it effectively sabotaged a sale of the Swedish company to Chinese buyers.

We all know that litigation is the national sport of the United States, but this looks like a long shot to us. The basic argument is that GM would not licence its technology used by Saab to the putative Chinese buyer, so the deal fell through.