A Saab engineer revealed in a trade magazine that, under GM ownership, Saab had been working on a twin-clutch, wet-clutch transmission capable of handling up to 590lb ft of torque and destined for use un a mid-engined 'Vette.
Under GM, Saab was the 'centre of competence' (there's damning with faint praise) for transmission systems, and it's thought that an almost-complete mid-engined 'Vette was canned as a result of the 2008 global financial crisis and GM's subsequent chapter 11 bankruptcy crisis.
The flames of rumour have even been fanned by none other than GM CEO Ed Whitacre. He has said of the next Corvette that it "looks quite different. It's totally redesigned inside and out."