As the matriarch of the Agnelli family, Marella quickly became involved in various philanthropic and cultural endeavors. Her marriage to Gianni Agnelli brought her into close proximity to the world of high fashion, as Fiat had significant holdings in L'Espresso, an Italian publishing company that owned several prominent fashion magazines.
In 2014, the ship underwent a major $40 million refit, which transformed it into the Marella Inari, a vessel designed specifically for the European market. The refit added a range of luxurious amenities and facilities, including a new spa and wellness center, a state-of-the-art fitness center, and several upscale restaurants and bars. marella inari