FCA CEO Sergio Marchionne spun off Ferrari in 2015 and has since then hinted at breaking up the business even further.
According to the report, Maserati and Alfa Romeo may be worth as much as $8 billion.
Considering the success of Ferrari's 2015 IPO, it's not surprising Marchionne sees further opportunity in spinning off even more businesses. Ferrari's stock price more than doubled over the last year.
Bloomberg, which cites sources close to the matter, reports that no final decision could be made until 2018.
Earlier this month Automotive News reported that a Chinese company had made FCA a buyout bid, which the automaker declined.