The merger is now expected to be completed in the first quarter of 2021

Shares in Fiat Chrysler (FCA) rose sharply in Milan on Tuesday after the car maker and French partner PSA revised the terms of their merger deal, with FCA's shareholders getting a smaller cash payout but a stake in another business. FCA and PSA, which last year agreed to merge to give birth to Stellantis, the world's fourth largest car manufacturer, said late on Monday they had amended the accord to conserve cash and better face the COVID-19 challenge to the auto sector. Milan-listed shares in