Fiat is considering selling about 1.5 billion euros ($2.05 billion) in mandatory convertible bonds to cut debt following its merger with Chrysler Group, two people familiar with the matter said.The Italian carmaker, which bought the remaining Chrysler stake last month, is talking to banks about issuing a bond that would convert into shares of Fiat Chrysler Automobiles, the company being formed by the combination, said the people, who asked not to be identified discussing private matters.