I don't think Fiat will get it, I think Magna will.
Fiat would like the large (Insignia) and medium (Astra) floorpans, but apart from that I don't know what else GM Europe has? Fiat has the best engines. And, given that whatever happens anything other than minimum plant closure is politically undesirable, I see GME as a poisoned chalice. The two groups cover much of the same model areas and are in competition. I know there are already synergies, but given that the world market for cars looks to be shrinking structurally I just don't see the point of combining, other than that perhaps Opel might cover northern Europe and Fiat has the south, and a union could form a sort of dual empire. But why? However, whoever has control has the ultimate power, and Magna has access to Russian money and production facilities. Either way I don't see a good future for all the GME, or even Fiat, factories. Even before this economic meltdown the world auto industry was producing too many cars to achieve decent profit, and I'd like to know how either buyer can alter this structural reality - as I see it.
Perhaps Fiat sees GME as a springboard to models readily desirable in the US; but they don't much like the Astra (Saturn), even if it has gone over there with the wrong engine.
I just hope Fiat can get its new engines and models out quickly, and bring successful cars to market in the US. Fiat will do increasingly well in Europe and its other established markets..