Fiat Chrysler Automobiles' chairman Sergio Marchionne has taken on the additional role of Ferrari CEO after Amedeo Felisa retired, after 26 years of service. FCA also has a new group treasurer.

Felisa will remain a Ferrari board member with a "specific mandate as technical advisor to the company", the automakers announced in a statement.

Marchionne said: "I have known Amedeo for more than a decade and I have had the opportunity to work with him closely for the last two years. He is beyond any doubt one of the best automotive engineers in the world. During the last 26 years, he has worked tirelessly to fuel and guide Ferrari's technical development, producing an array of cars which have set the standard for both performance and styling."

Separately and earlier, FCA said Doug Ostermann is now FCA group treasurer, responsible for all treasury activities globally and reporting directly to group CFO Richard Palmer.

Ferrante Zileri is now assistant group treasurer, responsible for European treasury and group financial markets.  

Ostermann is also temporary NAFTA treasurer, replacing Ken Nilson, who retires after 34 years with the automaker.

Ostermann joined from Archer Daniels Midland Company where he held a series of positions with increasing responsibility, including global treasurer and, most recently, vice president – mergers & acquisitions, business development and global credit.