The merger of Fiat Chrysler Automobiles (FCA) and French-based Groupe PSA is now complete.
The new company will be called Stellantis, and be led by CEO Carlos Tavares and Board Chairman John Elkann.
Michelle Krebs, a senior analyst with Autotrader, says the merger is intended to help increase global sales, reduce costs, and invest in new technologies like electrification.
"I don't think customers in the United States will know any difference," she says. "All the brands will remain the same, Jeep, Ram. There are some (changes) ahead, but for the immediate future I don't think there's much change that will be noticed by consumers."
Krebs says it's possible Stellantis will eventually move to drop some brands that are struggling, such as Chrysler.
Stellantis is expected to be the fourth-largest global automaker by volume of vehicles sold, and third largest by sales revenue.
Shares in Stellantis are to start trading under the ticker symbol “STLA” on the New York Stock Exchange on Tuesday.