Thing is though, the only reason Saab's gone under is because of American mis-management. Eg the 9-5 was actually due to be replaced in 2005, when GM was working in the Fiat group. But when the alliance broke upm *poof* went the new 9-5, straight down the drain. All the money and time spent to design a car, all gone to waste.
Thing is though, from my PoV Saab's engineers weren't hopeless, it was just that GM never gave Saab an opportunity. The things that come to mind are Saab's progress with turbo engines, vehicle safety, 4WD system (as mentioned) and their bio-ethanol engines.
http://www.autocar.co.uk/blogs/autocarconfidential/archive/2009/12/18/what-went-wrong-for-saab.aspx
Like others on the Autocar boards have said, this is a really stupid move by GM, where it will work only in the short term. They've just made some money by selling off the rights to the 9-3 and old 9-5 to the Chinese, and more importantly, 2 new models are virtually production ready. Add to that the future potential of advancements in biofuel (i.e. bio ethanol) technology, and it really does look like this is one of the worst moves GM has ever made.
These few quotes from the people over at the Autocar message boards sum up my feelings perfectly: http://www.autocar.co.uk/forums/t/10501.aspx