Mike Manley, head of Jeep and Ram, replaces ailing Sergio Marchionne as FCA CEO Mike Manley, head of Jeep and Ram, replaces ailing Sergio Marchionne as FCA CEO July 21, 2018 dzadmin Comments 0 Comment Fiat Chrysler Automobiles on Saturday appointed Mike Manley to replace the seriously ill Sergio Marchionne as its CEO. Manley, 54, a native of England, has headed Jeep since 2009 and the Ram brand since 2015.