Stellantis is "very confident" of delivering its planned 5 billion euros ($6.1 billion) of synergies, including 80 percent within four years, CEO Carlos Tavares said on Tuesday.
Tavares's comments came as Stellantis shares surged on their New York debut, mirroring strong increases in its French and Italian listed stock since their launches on Monday. The stock rose in New York as much as 13 percent to $17.21.
"The purpose is not to be big, but to be great at what we do," Tavares said during his first news conference since the two companies completed their merger on Jan. 16.
Tavares also said he had created a task force to find out "what went wrong" for both Fiat Chrysler and PSA in China.
Both PSA and FCA have poor sales in China, the world's largest car market.
The task force, consisting of Stellantis' top five executives, would work on solutions for a come-back in China, Tavares said.
When asked if options could include finding a new local partner, Tavares said the company "would not exclude anything."
In the run-up to their merger, PSA and FCA said they will not close plants and Tavares said Stellantis' ability to spread costs to invest in new vehicles would act as a "shield" against job cuts.
When asked about the future of the group's Ellesmere Port plant in Britain and whether Stellantis would invest in electric vehicles there following the conclusion of a Brexit trade deal, Tavares said: "we are now reviewing those different scenarios."
Stellantis will have 14 brands, from FCA's Fiat, Maserati and U.S.-focused Jeep, Dodge and Ram to PSA's traditionally Europe-focused Peugeot, Citroen, Opel and DS.
Tavares, who was previously PSA's CEO, said all 14 brands would be given a chance "to rebound" and invest in new products as the group focuses on profitable growth.
Stellantis will launch 10 new electrified vehicle models in 2021, he said.
