The future of Opel remained uncertain Friday after Italian car giant Fiat withdrew from talks in Berlin due to concerns over emergency funding demanded by the German government for the ailing automaker. Fiat had been one of two potential bidders, along with Canadian-Austrian supplier Magna, still in the running to take over Opel, which is currently owned by General Motors. Fiat said in a statement Friday it remained interested in taking control of Opel but said the German government’s demand for the potential suitors to provide $417 million in short-term funding would expose Fiat to “unnecessary and unwarranted risks.” “Fiat remains open and committed to continue discussions with all parties involved with a view to find a stable and lasting solution for the industrial activities of Opel,” Fiat said