BEN KLAYMAN, PAUL LIENERT AND JEFFREY DASTIN

Motor Sports

Sergio's challenge: Build Jeep into FCA's top global brand by 2018

Auto analysts are skeptical that Sergio Marchionne, the hyperbolic chief executive of Fiat Chrysler Automobiles (FCHA.MI)(FCAU.N), can meet his most ambitious goal: to nearly double Jeep's global sales over the next four years.

By BEN KLAYMAN, PAUL LIENERT AND JEFFREY DASTIN