Fiat CEO to become new Ferrari chairman

• Luca Cordero di Montezemolo will step down as chairman of Ferrari on Oct. 13 to be replaced by Fiat (FIATY) CEO Sergio Marchionne.
• The resignation follows many disagreements between the two execs, centered around Ferrari's role within the Fiat group.
• As Ferrari's chairman since 1991, Montezemolo had been stressing the need to keep Ferrari autonomous, while Marchionne looked to better integrate it within the group.