GM owns it (which was dumb in the first place), so let the Swiss buy it back from GM.
errrm, now let me see what's wrong here... 1. Saab are SWEDISH, that's SWEDEN, not SWITZERLAND. 2. Switzerland are not a member of the EU anyway although they are a part of the EEA, so why on earth on your logic should the EU want to buy it anyway. But true, GM were dumb, they showed complete incompetence in managing their business and their aquisitions.
Diplomacy is the art of saying "nice doggy" until you can find a rock.